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TDengine
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未验证 提交 39d9e6b4 编写于 作者: S Shengliang Guan 提交者： GitHub
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Merge pull request #3963 from taosdata/feature/crash_gen 

Refactoring and enhancing crash_gen tool
上级 846434dd 87cd1cc0
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tests/pytest/crash_gen.sh
浏览文件 @ 39d9e6b4
......@@ -54,6 +54,7 @@ export PYTHONPATH=$(pwd)/../../src/connector/python/linux/python3:$(pwd)
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$LIB_DIR
# Now we are all let, and let's see if we can find a crash. Note we pass all params
CRASH_GEN_EXEC=crash_gen_bootstrap.py
if [[ $1 == '--valgrind' ]]; then
shift
export PYTHONMALLOC=malloc
......@@ -66,14 +67,14 @@ if [[ $1 == '--valgrind' ]]; then
--leak-check=yes \
--suppressions=crash_gen/valgrind_taos.supp \
$PYTHON_EXEC \
./crash_gen/crash_gen.py $@ > $VALGRIND_OUT 2> $VALGRIND_ERR
$CRASH_GEN_EXEC $@ > $VALGRIND_OUT 2> $VALGRIND_ERR
elif [[ $1 == '--helgrind' ]]; then
shift
valgrind \
--tool=helgrind \
$PYTHON_EXEC \
./crash_gen/crash_gen.py $@
$CRASH_GEN_EXEC $@
else
$PYTHON_EXEC ./crash_gen/crash_gen.py $@
$PYTHON_EXEC $CRASH_GEN_EXEC $@
fi
tests/pytest/crash_gen/README.md 0 → 100644
浏览文件 @ 39d9e6b4
<center><h1>User's Guide to the Crash_Gen Tool</h1></center>
# Introduction
To effectively test and debug our TDengine product, we have developed a simple tool to
exercise various functions of the system in a randomized fashion, hoping to expose
maximum number of problems, hopefully without a pre-determined scenario.
# Preparation
To run this tool, please ensure the followed preparation work is done first.
1. Fetch a copy of the TDengine source code, and build it successfully in the `build/`
directory
1. Ensure that the system has Python3.8 or above properly installed. We use
Ubuntu 20.04LTS as our own development environment, and suggest you also use such
an environment if possible.
# Simple Execution
To run the tool with the simplest method, follow the steps below:
1. Open a terminal window, start the `taosd` service in the `build/` directory
(or however you prefer to start the `taosd` service)
1. Open another terminal window, go into the `tests/pytest/` directory, and
run `./crash_gen.sh -p -t 3 -s 10` (change the two parameters here as you wish)
1. Watch the output to the end and see if you get a `SUCCESS` or `FAILURE`
That's it!
# Running Clusters
This tool also makes it easy to test/verify the clustering capabilities of TDengine. You
can start a cluster quite easily with the following command:
```
$ cd tests/pytest/
$ ./crash_gen.sh -e -o 3
```
The `-e` option above tells the tool to start the service, and do not run any tests, while
the `-o 3` option tells the tool to start 3 DNodes and join them together in a cluster.
Obviously you can adjust the the number here.
## Behind the Scenes
When the tool runs a cluster, it users a number of directories, each holding the information
for a single DNode, see:
```
$ ls build/cluster*
build/cluster_dnode_0:
cfg data log
build/cluster_dnode_1:
cfg data log
build/cluster_dnode_2:
cfg data log
```
Therefore, when something goes wrong and you want to reset everything with the cluster, simple
erase all the files:
```
$ rm -rf build/cluster_dnode_*
```
## Addresses and Ports
The DNodes in the cluster all binds the the `127.0.0.1` IP address (for now anyway), and
uses port 6030 for the first DNode, and 6130 for the 2nd one, and so on.
## Testing Against a Cluster
In a separate terminal window, you can invoke the tool in client mode and test against
a cluster, such as:
```
$ ./crash_gen.sh -p -t 10 -s 100 -i 3
```
Here the `-i` option tells the tool to always create tables with 3 replicas, and run
all tests against such tables.
# Additional Features
The exhaustive features of the tool is available through the `-h` option:
```
$ ./crash_gen.sh -h
usage: crash_gen_bootstrap.py [-h] [-a] [-b MAX_DBS] [-c CONNECTOR_TYPE] [-d] [-e] [-g IGNORE_ERRORS] [-i MAX_REPLICAS] [-l] [-n] [-o NUM_DNODES] [-p] [-r]
[-s MAX_STEPS] [-t NUM_THREADS] [-v] [-x]
TDengine Auto Crash Generator (PLEASE NOTICE the Prerequisites Below)
---------------------------------------------------------------------
1. You build TDengine in the top level ./build directory, as described in offical docs
2. You run the server there before this script: ./build/bin/taosd -c test/cfg
optional arguments:
-h, --help show this help message and exit
-a, --auto-start-service
Automatically start/stop the TDengine service (default: false)
-b MAX_DBS, --max-dbs MAX_DBS
Maximum number of DBs to keep, set to disable dropping DB. (default: 0)
-c CONNECTOR_TYPE, --connector-type CONNECTOR_TYPE
Connector type to use: native, rest, or mixed (default: 10)
-d, --debug Turn on DEBUG mode for more logging (default: false)
-e, --run-tdengine Run TDengine service in foreground (default: false)
-g IGNORE_ERRORS, --ignore-errors IGNORE_ERRORS
Ignore error codes, comma separated, 0x supported (default: None)
-i MAX_REPLICAS, --max-replicas MAX_REPLICAS
Maximum number of replicas to use, when testing against clusters. (default: 1)
-l, --larger-data Write larger amount of data during write operations (default: false)
-n, --dynamic-db-table-names
Use non-fixed names for dbs/tables, useful for multi-instance executions (default: false)
-o NUM_DNODES, --num-dnodes NUM_DNODES
Number of Dnodes to initialize, used with -e option. (default: 1)
-p, --per-thread-db-connection
Use a single shared db connection (default: false)
-r, --record-ops Use a pair of always-fsynced fils to record operations performing + performed, for power-off tests (default: false)
-s MAX_STEPS, --max-steps MAX_STEPS
Maximum number of steps to run (default: 100)
-t NUM_THREADS, --num-threads NUM_THREADS
Number of threads to run (default: 10)
-v, --verify-data Verify data written in a number of places by reading back (default: false)
-x, --continue-on-exception
Continue execution after encountering unexpected/disallowed errors/exceptions (default: false)
```
tests/pytest/crash_gen/crash_gen.py
浏览文件 @ 39d9e6b4
......@@ -14,42 +14,36 @@
# For type hinting before definition, ref:
# https://stackoverflow.com/questions/33533148/how-do-i-specify-that-the-return-type-of-a-method-is-the-same-as-the-class-itsel
from __future__ import annotations
import taos
from util.sql import *
from util.cases import *
from util.dnodes import *
from util.log import *
from queue import Queue, Empty
from typing import IO
from typing import Set
from typing import Dict
from typing import List
from requests.auth import HTTPBasicAuth
from typing import Optional # Type hinting, ref: https://stackoverflow.com/questions/19202633/python-3-type-hinting-for-none
import textwrap
import datetime
import logging
import time
import datetime
import random
import logging
import threading
import requests
import copy
import argparse
import getopt
import sys
import os
import io
import signal
import traceback
import resource
from guppy import hpy
import gc
try:
import psutil
except:
print("Psutil module needed, please install: sudo pip3 install psutil")
sys.exit(-1)
from .service_manager import ServiceManager, TdeInstance
from .misc import Logging, Status, CrashGenError, Dice, Helper, Progress
from .db import DbConn, MyTDSql, DbConnNative, DbManager
import taos
import requests
# Require Python 3
if sys.version_info[0] < 3:
......@@ -59,41 +53,37 @@ if sys.version_info[0] < 3:
# Command-line/Environment Configurations, will set a bit later
# ConfigNameSpace = argparse.Namespace
gConfig = argparse.Namespace() # Dummy value, will be replaced later
gSvcMgr = None # TODO: refactor this hack, use dep injection
logger = None # type: Logger
gConfig: argparse.Namespace
gSvcMgr: ServiceManager # TODO: refactor this hack, use dep injection
# logger: logging.Logger
gContainer: Container
def runThread(wt: WorkerThread):
wt.run()
class CrashGenError(Exception):
def __init__(self, msg=None, errno=None):
self.msg = msg
self.errno = errno
def __str__(self):
return self.msg
# def runThread(wt: WorkerThread):
# wt.run()
class WorkerThread:
def __init__(self, pool: ThreadPool, tid, tc: ThreadCoordinator,
# te: TaskExecutor,
): # note: main thread context!
def __init__(self, pool: ThreadPool, tid, tc: ThreadCoordinator):
"""
Note: this runs in the main thread context
"""
# self._curStep = -1
self._pool = pool
self._tid = tid
self._tc = tc # type: ThreadCoordinator
# self.threadIdent = threading.get_ident()
self._thread = threading.Thread(target=runThread, args=(self,))
# self._thread = threading.Thread(target=runThread, args=(self,))
self._thread = threading.Thread(target=self.run)
self._stepGate = threading.Event()
# Let us have a DB connection of our own
if (gConfig.per_thread_db_connection): # type: ignore
# print("connector_type = {}".format(gConfig.connector_type))
tInst = gContainer.defTdeInstance
if gConfig.connector_type == 'native':
self._dbConn = DbConn.createNative()
self._dbConn = DbConn.createNative(tInst.getDbTarget())
elif gConfig.connector_type == 'rest':
self._dbConn = DbConn.createRest()
self._dbConn = DbConn.createRest(tInst.getDbTarget())
elif gConfig.connector_type == 'mixed':
if Dice.throw(2) == 0: # 1/2 chance
self._dbConn = DbConn.createNative()
......@@ -105,10 +95,10 @@ class WorkerThread:
# self._dbInUse = False # if "use db" was executed already
def logDebug(self, msg):
logger.debug(" TRD[{}] {}".format(self._tid, msg))
Logging.debug(" TRD[{}] {}".format(self._tid, msg))
def logInfo(self, msg):
logger.info(" TRD[{}] {}".format(self._tid, msg))
Logging.info(" TRD[{}] {}".format(self._tid, msg))
# def dbInUse(self):
# return self._dbInUse
......@@ -127,10 +117,10 @@ class WorkerThread:
def run(self):
# initialization after thread starts, in the thread context
# self.isSleeping = False
logger.info("Starting to run thread: {}".format(self._tid))
Logging.info("Starting to run thread: {}".format(self._tid))
if (gConfig.per_thread_db_connection): # type: ignore
logger.debug("Worker thread openning database connection")
Logging.debug("Worker thread openning database connection")
self._dbConn.open()
self._doTaskLoop()
......@@ -140,7 +130,7 @@ class WorkerThread:
if self._dbConn.isOpen: #sometimes it is not open
self._dbConn.close()
else:
logger.warning("Cleaning up worker thread, dbConn already closed")
Logging.warning("Cleaning up worker thread, dbConn already closed")
def _doTaskLoop(self):
# while self._curStep < self._pool.maxSteps:
......@@ -151,15 +141,15 @@ class WorkerThread:
tc.crossStepBarrier() # shared barrier first, INCLUDING the last one
except threading.BrokenBarrierError as err: # main thread timed out
print("_bto", end="")
logger.debug("[TRD] Worker thread exiting due to main thread barrier time-out")
Logging.debug("[TRD] Worker thread exiting due to main thread barrier time-out")
break
logger.debug("[TRD] Worker thread [{}] exited barrier...".format(self._tid))
Logging.debug("[TRD] Worker thread [{}] exited barrier...".format(self._tid))
self.crossStepGate() # then per-thread gate, after being tapped
logger.debug("[TRD] Worker thread [{}] exited step gate...".format(self._tid))
Logging.debug("[TRD] Worker thread [{}] exited step gate...".format(self._tid))
if not self._tc.isRunning():
print("_wts", end="")
logger.debug("[TRD] Thread Coordinator not running any more, worker thread now stopping...")
Logging.debug("[TRD] Thread Coordinator not running any more, worker thread now stopping...")
break
# Before we fetch the task and run it, let's ensure we properly "use" the database (not needed any more)
......@@ -178,15 +168,15 @@ class WorkerThread:
raise
# Fetch a task from the Thread Coordinator
logger.debug( "[TRD] Worker thread [{}] about to fetch task".format(self._tid))
Logging.debug( "[TRD] Worker thread [{}] about to fetch task".format(self._tid))
task = tc.fetchTask()
# Execute such a task
logger.debug("[TRD] Worker thread [{}] about to execute task: {}".format(
Logging.debug("[TRD] Worker thread [{}] about to execute task: {}".format(
self._tid, task.__class__.__name__))
task.execute(self)
tc.saveExecutedTask(task)
logger.debug("[TRD] Worker thread [{}] finished executing task".format(self._tid))
Logging.debug("[TRD] Worker thread [{}] finished executing task".format(self._tid))
# self._dbInUse = False # there may be changes between steps
# print("_wtd", end=None) # worker thread died
......@@ -209,7 +199,7 @@ class WorkerThread:
self.verifyThreadSelf() # only allowed by ourselves
# Wait again at the "gate", waiting to be "tapped"
logger.debug(
Logging.debug(
"[TRD] Worker thread {} about to cross the step gate".format(
self._tid))
self._stepGate.wait()
......@@ -222,7 +212,7 @@ class WorkerThread:
self.verifyThreadMain() # only allowed for main thread
if self._thread.is_alive():
logger.debug("[TRD] Tapping worker thread {}".format(self._tid))
Logging.debug("[TRD] Tapping worker thread {}".format(self._tid))
self._stepGate.set() # wake up!
time.sleep(0) # let the released thread run a bit
else:
......@@ -253,7 +243,7 @@ class WorkerThread:
class ThreadCoordinator:
WORKER_THREAD_TIMEOUT = 60 # one minute
WORKER_THREAD_TIMEOUT = 180 # one minute
def __init__(self, pool: ThreadPool, dbManager: DbManager):
self._curStep = -1 # first step is 0
......@@ -267,7 +257,7 @@ class ThreadCoordinator:
self._stepBarrier = threading.Barrier(
self._pool.numThreads + 1) # one barrier for all threads
self._execStats = ExecutionStats()
self._runStatus = MainExec.STATUS_RUNNING
self._runStatus = Status.STATUS_RUNNING
self._initDbs()
def getTaskExecutor(self):
......@@ -280,14 +270,14 @@ class ThreadCoordinator:
self._stepBarrier.wait(timeout)
def requestToStop(self):
self._runStatus = MainExec.STATUS_STOPPING
self._runStatus = Status.STATUS_STOPPING
self._execStats.registerFailure("User Interruption")
def _runShouldEnd(self, transitionFailed, hasAbortedTask, workerTimeout):
maxSteps = gConfig.max_steps # type: ignore
if self._curStep >= (maxSteps - 1): # maxStep==10, last curStep should be 9
return True
if self._runStatus != MainExec.STATUS_RUNNING:
if self._runStatus != Status.STATUS_RUNNING:
return True
if transitionFailed:
return True
......@@ -308,7 +298,7 @@ class ThreadCoordinator:
def _releaseAllWorkerThreads(self, transitionFailed):
self._curStep += 1 # we are about to get into next step. TODO: race condition here!
# Now not all threads had time to go to sleep
logger.debug(
Logging.debug(
"--\r\n\n--> Step {} starts with main thread waking up".format(self._curStep))
# A new TE for the new step
......@@ -316,7 +306,7 @@ class ThreadCoordinator:
if not transitionFailed: # only if not failed
self._te = TaskExecutor(self._curStep)
logger.debug("[TRD] Main thread waking up at step {}, tapping worker threads".format(
Logging.debug("[TRD] Main thread waking up at step {}, tapping worker threads".format(
self._curStep)) # Now not all threads had time to go to sleep
# Worker threads will wake up at this point, and each execute it's own task
self.tapAllThreads() # release all worker thread from their "gates"
......@@ -325,10 +315,10 @@ class ThreadCoordinator:
# Now main thread (that's us) is ready to enter a step
# let other threads go past the pool barrier, but wait at the
# thread gate
logger.debug("[TRD] Main thread about to cross the barrier")
Logging.debug("[TRD] Main thread about to cross the barrier")
self.crossStepBarrier(timeout=self.WORKER_THREAD_TIMEOUT)
self._stepBarrier.reset() # Other worker threads should now be at the "gate"
logger.debug("[TRD] Main thread finished crossing the barrier")
Logging.debug("[TRD] Main thread finished crossing the barrier")
def _doTransition(self):
transitionFailed = False
......@@ -336,11 +326,11 @@ class ThreadCoordinator:
for x in self._dbs:
db = x # type: Database
sm = db.getStateMachine()
logger.debug("[STT] starting transitions for DB: {}".format(db.getName()))
Logging.debug("[STT] starting transitions for DB: {}".format(db.getName()))
# at end of step, transiton the DB state
tasksForDb = db.filterTasks(self._executedTasks)
sm.transition(tasksForDb, self.getDbManager().getDbConn())
logger.debug("[STT] transition ended for DB: {}".format(db.getName()))
Logging.debug("[STT] transition ended for DB: {}".format(db.getName()))
# Due to limitation (or maybe not) of the TD Python library,
# we cannot share connections across threads
......@@ -348,14 +338,14 @@ class ThreadCoordinator:
# Moving below to task loop
# if sm.hasDatabase():
# for t in self._pool.threadList:
# logger.debug("[DB] use db for all worker threads")
# Logging.debug("[DB] use db for all worker threads")
# t.useDb()
# t.execSql("use db") # main thread executing "use
# db" on behalf of every worker thread
except taos.error.ProgrammingError as err:
if (err.msg == 'network unavailable'): # broken DB connection
logger.info("DB connection broken, execution failed")
Logging.info("DB connection broken, execution failed")
traceback.print_stack()
transitionFailed = True
self._te = None # Not running any more
......@@ -368,7 +358,7 @@ class ThreadCoordinator:
self.resetExecutedTasks() # clear the tasks after we are done
# Get ready for next step
logger.debug("<-- Step {} finished, trasition failed = {}".format(self._curStep, transitionFailed))
Logging.debug("<-- Step {} finished, trasition failed = {}".format(self._curStep, transitionFailed))
return transitionFailed
def run(self):
......@@ -383,7 +373,8 @@ class ThreadCoordinator:
workerTimeout = False
while not self._runShouldEnd(transitionFailed, hasAbortedTask, workerTimeout):
if not gConfig.debug: # print this only if we are not in debug mode
print(".", end="", flush=True)
Progress.emit(Progress.STEP_BOUNDARY)
# print(".", end="", flush=True)
# if (self._curStep % 2) == 0: # print memory usage once every 10 steps
# memUsage = resource.getrusage(resource.RUSAGE_SELF).ru_maxrss
# print("[m:{}]".format(memUsage), end="", flush=True) # print memory usage
......@@ -395,8 +386,9 @@ class ThreadCoordinator:
try:
self._syncAtBarrier() # For now just cross the barrier
Progress.emit(Progress.END_THREAD_STEP)
except threading.BrokenBarrierError as err:
logger.info("Main loop aborted, caused by worker thread time-out")
Logging.info("Main loop aborted, caused by worker thread time-out")
self._execStats.registerFailure("Aborted due to worker thread timeout")
print("\n\nWorker Thread time-out detected, important thread info:")
ts = ThreadStacks()
......@@ -409,7 +401,7 @@ class ThreadCoordinator:
# threads are QUIET.
hasAbortedTask = self._hasAbortedTask() # from previous step
if hasAbortedTask:
logger.info("Aborted task encountered, exiting test program")
Logging.info("Aborted task encountered, exiting test program")
self._execStats.registerFailure("Aborted Task Encountered")
break # do transition only if tasks are error free
......@@ -420,29 +412,30 @@ class ThreadCoordinator:
transitionFailed = True
errno2 = Helper.convertErrno(err.errno) # correct error scheme
errMsg = "Transition failed: errno=0x{:X}, msg: {}".format(errno2, err)
logger.info(errMsg)
Logging.info(errMsg)
traceback.print_exc()
self._execStats.registerFailure(errMsg)
# Then we move on to the next step
Progress.emit(Progress.BEGIN_THREAD_STEP)
self._releaseAllWorkerThreads(transitionFailed)
if hasAbortedTask or transitionFailed : # abnormal ending, workers waiting at "gate"
logger.debug("Abnormal ending of main thraed")
Logging.debug("Abnormal ending of main thraed")
elif workerTimeout:
logger.debug("Abnormal ending of main thread, due to worker timeout")
Logging.debug("Abnormal ending of main thread, due to worker timeout")
else: # regular ending, workers waiting at "barrier"
logger.debug("Regular ending, main thread waiting for all worker threads to stop...")
Logging.debug("Regular ending, main thread waiting for all worker threads to stop...")
self._syncAtBarrier()
self._te = None # No more executor, time to end
logger.debug("Main thread tapping all threads one last time...")
Logging.debug("Main thread tapping all threads one last time...")
self.tapAllThreads() # Let the threads run one last time
logger.debug("\r\n\n--> Main thread ready to finish up...")
logger.debug("Main thread joining all threads")
Logging.debug("\r\n\n--> Main thread ready to finish up...")
Logging.debug("Main thread joining all threads")
self._pool.joinAll() # Get all threads to finish
logger.info("\nAll worker threads finished")
Logging.info("\nAll worker threads finished")
self._execStats.endExec()
def cleanup(self): # free resources
......@@ -474,7 +467,7 @@ class ThreadCoordinator:
wakeSeq.append(i)
else:
wakeSeq.insert(0, i)
logger.debug(
Logging.debug(
"[TRD] Main thread waking up worker threads: {}".format(
str(wakeSeq)))
# TODO: set dice seed to a deterministic value
......@@ -493,8 +486,10 @@ class ThreadCoordinator:
if gConfig.max_dbs == 0:
self._dbs.append(Database(0, dbc))
else:
baseDbNumber = int(datetime.datetime.now().timestamp( # Don't use Dice/random, as they are deterministic
)*333) % 888 if gConfig.dynamic_db_table_names else 0
for i in range(gConfig.max_dbs):
self._dbs.append(Database(i, dbc))
self._dbs.append(Database(baseDbNumber + i, dbc))
def pickDatabase(self):
idxDb = 0
......@@ -512,7 +507,7 @@ class ThreadCoordinator:
# pick a task type for current state
db = self.pickDatabase()
taskType = db.getStateMachine().pickTaskType() # type: Task
taskType = db.getStateMachine().pickTaskType() # dynamic name of class
return taskType(self._execStats, db) # create a task from it
def resetExecutedTasks(self):
......@@ -522,13 +517,6 @@ class ThreadCoordinator:
with self._lock:
self._executedTasks.append(task)
# We define a class to run a number of threads in locking steps.
class Helper:
@classmethod
def convertErrno(cls, errno):
return errno if (errno > 0) else 0x80000000 + errno
class ThreadPool:
def __init__(self, numThreads, maxSteps):
self.numThreads = numThreads
......@@ -546,7 +534,7 @@ class ThreadPool:
def joinAll(self):
for workerThread in self.threadList:
logger.debug("Joining thread...")
Logging.debug("Joining thread...")
workerThread._thread.join()
def cleanup(self):
......@@ -603,7 +591,7 @@ class LinearQueue():
def allocate(self, i):
with self._lock:
# logger.debug("LQ allocating item {}".format(i))
# Logging.debug("LQ allocating item {}".format(i))
if (i in self.inUse):
raise RuntimeError(
"Cannot re-use same index in queue: {}".format(i))
......@@ -611,7 +599,7 @@ class LinearQueue():
def release(self, i):
with self._lock:
# logger.debug("LQ releasing item {}".format(i))
# Logging.debug("LQ releasing item {}".format(i))
self.inUse.remove(i) # KeyError possible, TODO: why?
def size(self):
......@@ -633,357 +621,6 @@ class LinearQueue():
return ret
class DbConn:
TYPE_NATIVE = "native-c"
TYPE_REST = "rest-api"
TYPE_INVALID = "invalid"
@classmethod
def create(cls, connType):
if connType == cls.TYPE_NATIVE:
return DbConnNative()
elif connType == cls.TYPE_REST:
return DbConnRest()
else:
raise RuntimeError(
"Unexpected connection type: {}".format(connType))
@classmethod
def createNative(cls):
return cls.create(cls.TYPE_NATIVE)
@classmethod
def createRest(cls):
return cls.create(cls.TYPE_REST)
def __init__(self):
self.isOpen = False
self._type = self.TYPE_INVALID
self._lastSql = None
def getLastSql(self):
return self._lastSql
def open(self):
if (self.isOpen):
raise RuntimeError("Cannot re-open an existing DB connection")
# below implemented by child classes
self.openByType()
logger.debug("[DB] data connection opened, type = {}".format(self._type))
self.isOpen = True
def queryScalar(self, sql) -> int:
return self._queryAny(sql)
def queryString(self, sql) -> str:
return self._queryAny(sql)
def _queryAny(self, sql): # actual query result as an int
if (not self.isOpen):
raise RuntimeError("Cannot query database until connection is open")
nRows = self.query(sql)
if nRows != 1:
raise taos.error.ProgrammingError(
"Unexpected result for query: {}, rows = {}".format(sql, nRows),
(0x991 if nRows==0 else 0x992)
)
if self.getResultRows() != 1 or self.getResultCols() != 1:
raise RuntimeError("Unexpected result set for query: {}".format(sql))
return self.getQueryResult()[0][0]
def use(self, dbName):
self.execute("use {}".format(dbName))
def existsDatabase(self, dbName: str):
''' Check if a certain database exists '''
self.query("show databases")
dbs = [v[0] for v in self.getQueryResult()] # ref: https://stackoverflow.com/questions/643823/python-list-transformation
# ret2 = dbName in dbs
# print("dbs = {}, str = {}, ret2={}, type2={}".format(dbs, dbName,ret2, type(dbName)))
return dbName in dbs # TODO: super weird type mangling seen, once here
def hasTables(self):
return self.query("show tables") > 0
def execute(self, sql):
''' Return the number of rows affected'''
raise RuntimeError("Unexpected execution, should be overriden")
def safeExecute(self, sql):
'''Safely execute any SQL query, returning True/False upon success/failure'''
try:
self.execute(sql)
return True # ignore num of results, return success
except taos.error.ProgrammingError as err:
return False # failed, for whatever TAOS reason
# Not possile to reach here, non-TAOS exception would have been thrown
def query(self, sql) -> int: # return num rows returned
''' Return the number of rows affected'''
raise RuntimeError("Unexpected execution, should be overriden")
def openByType(self):
raise RuntimeError("Unexpected execution, should be overriden")
def getQueryResult(self):
raise RuntimeError("Unexpected execution, should be overriden")
def getResultRows(self):
raise RuntimeError("Unexpected execution, should be overriden")
def getResultCols(self):
raise RuntimeError("Unexpected execution, should be overriden")
# Sample: curl -u root:taosdata -d "show databases" localhost:6020/rest/sql
class DbConnRest(DbConn):
def __init__(self):
super().__init__()
self._type = self.TYPE_REST
self._url = "http://localhost:6041/rest/sql" # fixed for now
self._result = None
def openByType(self): # Open connection
pass # do nothing, always open
def close(self):
if (not self.isOpen):
raise RuntimeError("Cannot clean up database until connection is open")
# Do nothing for REST
logger.debug("[DB] REST Database connection closed")
self.isOpen = False
def _doSql(self, sql):
self._lastSql = sql # remember this, last SQL attempted
try:
r = requests.post(self._url,
data = sql,
auth = HTTPBasicAuth('root', 'taosdata'))
except:
print("REST API Failure (TODO: more info here)")
raise
rj = r.json()
# Sanity check for the "Json Result"
if ('status' not in rj):
raise RuntimeError("No status in REST response")
if rj['status'] == 'error': # clearly reported error
if ('code' not in rj): # error without code
raise RuntimeError("REST error return without code")
errno = rj['code'] # May need to massage this in the future
# print("Raising programming error with REST return: {}".format(rj))
raise taos.error.ProgrammingError(
rj['desc'], errno) # todo: check existance of 'desc'
if rj['status'] != 'succ': # better be this
raise RuntimeError(
"Unexpected REST return status: {}".format(
rj['status']))
nRows = rj['rows'] if ('rows' in rj) else 0
self._result = rj
return nRows
def execute(self, sql):
if (not self.isOpen):
raise RuntimeError(
"Cannot execute database commands until connection is open")
logger.debug("[SQL-REST] Executing SQL: {}".format(sql))
nRows = self._doSql(sql)
logger.debug(
"[SQL-REST] Execution Result, nRows = {}, SQL = {}".format(nRows, sql))
return nRows
def query(self, sql): # return rows affected
return self.execute(sql)
def getQueryResult(self):
return self._result['data']
def getResultRows(self):
print(self._result)
raise RuntimeError("TBD")
# return self._tdSql.queryRows
def getResultCols(self):
print(self._result)
raise RuntimeError("TBD")
# Duplicate code from TDMySQL, TODO: merge all this into DbConnNative
class MyTDSql:
# Class variables
_clsLock = threading.Lock() # class wide locking
longestQuery = None # type: str
longestQueryTime = 0.0 # seconds
lqStartTime = 0.0
# lqEndTime = 0.0 # Not needed, as we have the two above already
def __init__(self, hostAddr, cfgPath):
# Make the DB connection
self._conn = taos.connect(host=hostAddr, config=cfgPath)
self._cursor = self._conn.cursor()
self.queryRows = 0
self.queryCols = 0
self.affectedRows = 0
# def init(self, cursor, log=True):
# self.cursor = cursor
# if (log):
# caller = inspect.getframeinfo(inspect.stack()[1][0])
# self.cursor.log(caller.filename + ".sql")
def close(self):
self._cursor.close() # can we double close?
self._conn.close() # TODO: very important, cursor close does NOT close DB connection!
self._cursor.close()
def _execInternal(self, sql):
startTime = time.time()
ret = self._cursor.execute(sql)
# print("\nSQL success: {}".format(sql))
queryTime = time.time() - startTime
# Record the query time
cls = self.__class__
if queryTime > (cls.longestQueryTime + 0.01) :
with cls._clsLock:
cls.longestQuery = sql
cls.longestQueryTime = queryTime
cls.lqStartTime = startTime
return ret
def query(self, sql):
self.sql = sql
try:
self._execInternal(sql)
self.queryResult = self._cursor.fetchall()
self.queryRows = len(self.queryResult)
self.queryCols = len(self._cursor.description)
except Exception as e:
# caller = inspect.getframeinfo(inspect.stack()[1][0])
# args = (caller.filename, caller.lineno, sql, repr(e))
# tdLog.exit("%s(%d) failed: sql:%s, %s" % args)
raise
return self.queryRows
def execute(self, sql):
self.sql = sql
try:
self.affectedRows = self._execInternal(sql)
except Exception as e:
# caller = inspect.getframeinfo(inspect.stack()[1][0])
# args = (caller.filename, caller.lineno, sql, repr(e))
# tdLog.exit("%s(%d) failed: sql:%s, %s" % args)
raise
return self.affectedRows
class DbConnNative(DbConn):
# Class variables
_lock = threading.Lock()
_connInfoDisplayed = False
totalConnections = 0 # Not private
def __init__(self):
super().__init__()
self._type = self.TYPE_NATIVE
self._conn = None
# self._cursor = None
def getBuildPath(self):
selfPath = os.path.dirname(os.path.realpath(__file__))
if ("community" in selfPath):
projPath = selfPath[:selfPath.find("communit")]
else:
projPath = selfPath[:selfPath.find("tests")]
buildPath = None
for root, dirs, files in os.walk(projPath):
if ("taosd" in files):
rootRealPath = os.path.dirname(os.path.realpath(root))
if ("packaging" not in rootRealPath):
buildPath = root[:len(root) - len("/build/bin")]
break
if buildPath == None:
raise RuntimeError("Failed to determine buildPath, selfPath={}, projPath={}"
.format(selfPath, projPath))
return buildPath
def openByType(self): # Open connection
cfgPath = self.getBuildPath() + "/test/cfg"
hostAddr = "127.0.0.1"
cls = self.__class__ # Get the class, to access class variables
with cls._lock: # force single threading for opening DB connections. # TODO: whaaat??!!!
if not cls._connInfoDisplayed:
cls._connInfoDisplayed = True # updating CLASS variable
logger.info("Initiating TAOS native connection to {}, using config at {}".format(hostAddr, cfgPath))
# Make the connection
# self._conn = taos.connect(host=hostAddr, config=cfgPath) # TODO: make configurable
# self._cursor = self._conn.cursor()
# Record the count in the class
self._tdSql = MyTDSql(hostAddr, cfgPath) # making DB connection
cls.totalConnections += 1
self._tdSql.execute('reset query cache')
# self._cursor.execute('use db') # do this at the beginning of every
# Open connection
# self._tdSql = MyTDSql()
# self._tdSql.init(self._cursor)
def close(self):
if (not self.isOpen):
raise RuntimeError("Cannot clean up database until connection is open")
self._tdSql.close()
# Decrement the class wide counter
cls = self.__class__ # Get the class, to access class variables
with cls._lock:
cls.totalConnections -= 1
logger.debug("[DB] Database connection closed")
self.isOpen = False
def execute(self, sql):
if (not self.isOpen):
raise RuntimeError("Cannot execute database commands until connection is open")
logger.debug("[SQL] Executing SQL: {}".format(sql))
self._lastSql = sql
nRows = self._tdSql.execute(sql)
logger.debug(
"[SQL] Execution Result, nRows = {}, SQL = {}".format(
nRows, sql))
return nRows
def query(self, sql): # return rows affected
if (not self.isOpen):
raise RuntimeError(
"Cannot query database until connection is open")
logger.debug("[SQL] Executing SQL: {}".format(sql))
self._lastSql = sql
nRows = self._tdSql.query(sql)
logger.debug(
"[SQL] Query Result, nRows = {}, SQL = {}".format(
nRows, sql))
return nRows
# results are in: return self._tdSql.queryResult
def getQueryResult(self):
return self._tdSql.queryResult
def getResultRows(self):
return self._tdSql.queryRows
def getResultCols(self):
return self._tdSql.queryCols
class AnyState:
STATE_INVALID = -1
STATE_EMPTY = 0 # nothing there, no even a DB
......@@ -1232,7 +869,7 @@ class StateMechine:
def init(self, dbc: DbConn): # late initailization, don't save the dbConn
self._curState = self._findCurrentState(dbc) # starting state
logger.debug("Found Starting State: {}".format(self._curState))
Logging.debug("Found Starting State: {}".format(self._curState))
# TODO: seems no lnoger used, remove?
def getCurrentState(self):
......@@ -1270,7 +907,7 @@ class StateMechine:
raise RuntimeError(
"No suitable task types found for state: {}".format(
self._curState))
logger.debug(
Logging.debug(
"[OPS] Tasks found for state {}: {}".format(
self._curState,
typesToStrings(taskTypes)))
......@@ -1280,27 +917,27 @@ class StateMechine:
ts = time.time() # we use this to debug how fast/slow it is to do the various queries to find the current DB state
dbName =self._db.getName()
if not dbc.existsDatabase(dbName): # dbc.hasDatabases(): # no database?!
logger.debug( "[STT] empty database found, between {} and {}".format(ts, time.time()))
Logging.debug( "[STT] empty database found, between {} and {}".format(ts, time.time()))
return StateEmpty()
# did not do this when openning connection, and this is NOT the worker
# thread, which does this on their own
dbc.use(dbName)
if not dbc.hasTables(): # no tables
logger.debug("[STT] DB_ONLY found, between {} and {}".format(ts, time.time()))
Logging.debug("[STT] DB_ONLY found, between {} and {}".format(ts, time.time()))
return StateDbOnly()
sTable = self._db.getFixedSuperTable()
if sTable.hasRegTables(dbc, dbName): # no regular tables
logger.debug("[STT] SUPER_TABLE_ONLY found, between {} and {}".format(ts, time.time()))
Logging.debug("[STT] SUPER_TABLE_ONLY found, between {} and {}".format(ts, time.time()))
return StateSuperTableOnly()
else: # has actual tables
logger.debug("[STT] HAS_DATA found, between {} and {}".format(ts, time.time()))
Logging.debug("[STT] HAS_DATA found, between {} and {}".format(ts, time.time()))
return StateHasData()
# We transition the system to a new state by examining the current state itself
def transition(self, tasks, dbc: DbConn):
if (len(tasks) == 0): # before 1st step, or otherwise empty
logger.debug("[STT] Starting State: {}".format(self._curState))
Logging.debug("[STT] Starting State: {}".format(self._curState))
return # do nothing
# this should show up in the server log, separating steps
......@@ -1336,7 +973,7 @@ class StateMechine:
# Nothing for sure
newState = self._findCurrentState(dbc)
logger.debug("[STT] New DB state determined: {}".format(newState))
Logging.debug("[STT] New DB state determined: {}".format(newState))
# can old state move to new state through the tasks?
self._curState.verifyTasksToState(tasks, newState)
self._curState = newState
......@@ -1354,7 +991,7 @@ class StateMechine:
# read data task, default to 10: TODO: change to a constant
weights.append(10)
i = self._weighted_choice_sub(weights)
# logger.debug(" (weighted random:{}/{}) ".format(i, len(taskTypes)))
# Logging.debug(" (weighted random:{}/{}) ".format(i, len(taskTypes)))
return taskTypes[i]
# ref:
......@@ -1372,6 +1009,8 @@ class Database:
possibly in a cluster environment.
For now we use it to manage state transitions in that database
TODO: consider moving, but keep in mind it contains "StateMachine"
'''
_clsLock = threading.Lock() # class wide lock
_lastInt = 101 # next one is initial integer
......@@ -1433,7 +1072,7 @@ class Database:
t3 = datetime.datetime(2012, 1, 1) # default "keep" is 10 years
t4 = datetime.datetime.fromtimestamp(
t3.timestamp() + elSec2) # see explanation above
logger.info("Setting up TICKS to start from: {}".format(t4))
Logging.info("Setting up TICKS to start from: {}".format(t4))
return t4
@classmethod
......@@ -1468,64 +1107,6 @@ class Database:
return ret
class DbManager():
''' This is a wrapper around DbConn(), to make it easier to use.
TODO: rename this to DbConnManager
'''
def __init__(self):
self.tableNumQueue = LinearQueue() # TODO: delete?
# self.openDbServerConnection()
self._dbConn = DbConn.createNative() if (
gConfig.connector_type == 'native') else DbConn.createRest()
try:
self._dbConn.open() # may throw taos.error.ProgrammingError: disconnected
except taos.error.ProgrammingError as err:
# print("Error type: {}, msg: {}, value: {}".format(type(err), err.msg, err))
if (err.msg == 'client disconnected'): # cannot open DB connection
print(
"Cannot establish DB connection, please re-run script without parameter, and follow the instructions.")
sys.exit(2)
else:
print("Failed to connect to DB, errno = {}, msg: {}"
.format(Helper.convertErrno(err.errno), err.msg))
raise
except BaseException:
print("[=] Unexpected exception")
raise
# Do this after dbConn is in proper shape
# Moved to Database()
# self._stateMachine = StateMechine(self._dbConn)
def getDbConn(self):
return self._dbConn
# TODO: not used any more, to delete
def pickAndAllocateTable(self): # pick any table, and "use" it
return self.tableNumQueue.pickAndAllocate()
# TODO: Not used any more, to delete
def addTable(self):
with self._lock:
tIndex = self.tableNumQueue.push()
return tIndex
# Not used any more, to delete
def releaseTable(self, i): # return the table back, so others can use it
self.tableNumQueue.release(i)
# TODO: not used any more, delete
def getTableNameToDelete(self):
tblNum = self.tableNumQueue.pop() # TODO: race condition!
if (not tblNum): # maybe false
return False
return "table_{}".format(tblNum)
def cleanUp(self):
self._dbConn.close()
class TaskExecutor():
class BoundedList:
def __init__(self, size=10):
......@@ -1584,10 +1165,10 @@ class TaskExecutor():
self._boundedList.add(n)
# def logInfo(self, msg):
# logger.info(" T[{}.x]: ".format(self._curStep) + msg)
# Logging.info(" T[{}.x]: ".format(self._curStep) + msg)
# def logDebug(self, msg):
# logger.debug(" T[{}.x]: ".format(self._curStep) + msg)
# Logging.debug(" T[{}.x]: ".format(self._curStep) + msg)
class Task():
......@@ -1600,19 +1181,19 @@ class Task():
@classmethod
def allocTaskNum(cls):
Task.taskSn += 1 # IMPORTANT: cannot use cls.taskSn, since each sub class will have a copy
# logger.debug("Allocating taskSN: {}".format(Task.taskSn))
# Logging.debug("Allocating taskSN: {}".format(Task.taskSn))
return Task.taskSn
def __init__(self, execStats: ExecutionStats, db: Database):
self._workerThread = None
self._err = None # type: Exception
self._err: Optional[Exception] = None
self._aborted = False
self._curStep = None
self._numRows = None # Number of rows affected
# Assign an incremental task serial number
self._taskNum = self.allocTaskNum()
# logger.debug("Creating new task {}...".format(self._taskNum))
# Logging.debug("Creating new task {}...".format(self._taskNum))
self._execStats = execStats
self._db = db # A task is always associated/for a specific DB
......@@ -1649,11 +1230,12 @@ class Task():
if errno in [
0x05, # TSDB_CODE_RPC_NOT_READY
0x0B, # Unable to establish connection, more details in TD-1648
# 0x200, # invalid SQL， TODO: re-examine with TD-934
0x200, # invalid SQL， TODO: re-examine with TD-934
0x217, # "db not selected", client side defined error code
0x218, # "Table does not exist" client side defined error code
0x360, 0x362,
0x369, # tag already exists
# 0x218, # "Table does not exist" client side defined error code
0x360, # Table already exists
0x362,
# 0x369, # tag already exists
0x36A, 0x36B, 0x36D,
0x381,
0x380, # "db not selected"
......@@ -1662,12 +1244,17 @@ class Task():
0x503,
0x510, # vnode not in ready state
0x14, # db not ready, errno changed
0x600,
0x600, # Invalid table ID, why?
1000 # REST catch-all error
]:
return True # These are the ALWAYS-ACCEPTABLE ones
elif (errno in [ 0x0B ]) and gConfig.auto_start_service:
return True # We may get "network unavilable" when restarting service
# This case handled below already.
# elif (errno in [ 0x0B ]) and gConfig.auto_start_service:
# return True # We may get "network unavilable" when restarting service
elif gConfig.ignore_errors: # something is specified on command line
moreErrnos = [int(v, 0) for v in gConfig.ignore_errors.split(',')]
if errno in moreErrnos:
return True
elif errno == 0x200 : # invalid SQL, we need to div in a bit more
if msg.find("invalid column name") != -1:
return True
......@@ -1675,8 +1262,8 @@ class Task():
return True
elif msg.find("duplicated column names") != -1: # also alter table tag issues
return True
elif (gSvcMgr!=None) and gSvcMgr.isRestarting():
logger.info("Ignoring error when service is restarting: errno = {}, msg = {}".format(errno, msg))
elif gSvcMgr and (not gSvcMgr.isStable()): # We are managing service, and ...
Logging.info("Ignoring error when service starting/stopping: errno = {}, msg = {}".format(errno, msg))
return True
return False # Not an acceptable error
......@@ -1735,10 +1322,11 @@ class Task():
self._aborted = True
traceback.print_exc()
except BaseException: # TODO: what is this again??!!
self.logDebug(
"[=] Unexpected exception, SQL: {}".format(
wt.getDbConn().getLastSql()))
raise
raise RuntimeError("Punt")
# self.logDebug(
# "[=] Unexpected exception, SQL: {}".format(
# wt.getDbConn().getLastSql()))
# raise
self._execStats.endTaskType(self.__class__.__name__, self.isSuccess())
self.logDebug("[X] task execution completed, {}, status: {}".format(
......@@ -1817,14 +1405,14 @@ class ExecutionStats:
self._failureReason = reason
def printStats(self):
logger.info(
Logging.info(
"----------------------------------------------------------------------")
logger.info(
Logging.info(
"| Crash_Gen test {}, with the following stats:". format(
"FAILED (reason: {})".format(
self._failureReason) if self._failed else "SUCCEEDED"))
logger.info("| Task Execution Times (success/total):")
execTimesAny = 0
Logging.info("| Task Execution Times (success/total):")
execTimesAny = 0.0
for k, n in self._execTimes.items():
execTimesAny += n[0]
errStr = None
......@@ -1834,28 +1422,28 @@ class ExecutionStats:
errStrs = ["0x{:X}:{}".format(eno, n) for (eno, n) in errors.items()]
# print("error strings = {}".format(errStrs))
errStr = ", ".join(errStrs)
logger.info("| {0:<24}: {1}/{2} (Errors: {3})".format(k, n[1], n[0], errStr))
Logging.info("| {0:<24}: {1}/{2} (Errors: {3})".format(k, n[1], n[0], errStr))
logger.info(
Logging.info(
"| Total Tasks Executed (success or not): {} ".format(execTimesAny))
logger.info(
Logging.info(
"| Total Tasks In Progress at End: {}".format(
self._tasksInProgress))
logger.info(
Logging.info(
"| Total Task Busy Time (elapsed time when any task is in progress): {:.3f} seconds".format(
self._accRunTime))
logger.info(
Logging.info(
"| Average Per-Task Execution Time: {:.3f} seconds".format(self._accRunTime / execTimesAny))
logger.info(
Logging.info(
"| Total Elapsed Time (from wall clock): {:.3f} seconds".format(
self._elapsedTime))
logger.info("| Top numbers written: {}".format(TaskExecutor.getBoundedList()))
logger.info("| Active DB Native Connections (now): {}".format(DbConnNative.totalConnections))
logger.info("| Longest native query time: {:.3f} seconds, started: {}".
Logging.info("| Top numbers written: {}".format(TaskExecutor.getBoundedList()))
Logging.info("| Active DB Native Connections (now): {}".format(DbConnNative.totalConnections))
Logging.info("| Longest native query time: {:.3f} seconds, started: {}".
format(MyTDSql.longestQueryTime,
time.strftime("%x %X", time.localtime(MyTDSql.lqStartTime))) )
logger.info("| Longest native query: {}".format(MyTDSql.longestQuery))
logger.info(
Logging.info("| Longest native query: {}".format(MyTDSql.longestQuery))
Logging.info(
"----------------------------------------------------------------------")
......@@ -1865,11 +1453,14 @@ class StateTransitionTask(Task):
LARGE_NUMBER_OF_RECORDS = 50
SMALL_NUMBER_OF_RECORDS = 3
_baseTableNumber = None
_endState = None
@classmethod
def getInfo(cls): # each sub class should supply their own information
raise RuntimeError("Overriding method expected")
_endState = None
@classmethod
def getEndState(cls): # TODO: optimize by calling it fewer times
raise RuntimeError("Overriding method expected")
......@@ -1889,7 +1480,10 @@ class StateTransitionTask(Task):
@classmethod
def getRegTableName(cls, i):
return "reg_table_{}".format(i)
if ( StateTransitionTask._baseTableNumber is None):
StateTransitionTask._baseTableNumber = Dice.throw(
999) if gConfig.dynamic_db_table_names else 0
return "reg_table_{}".format(StateTransitionTask._baseTableNumber + i)
def execute(self, wt: WorkerThread):
super().execute(wt)
......@@ -1909,7 +1503,8 @@ class TaskCreateDb(StateTransitionTask):
# was: self.execWtSql(wt, "create database db")
repStr = ""
if gConfig.max_replicas != 1:
numReplica = Dice.throw(gConfig.max_replicas) + 1 # 1,2 ... N
# numReplica = Dice.throw(gConfig.max_replicas) + 1 # 1,2 ... N
numReplica = gConfig.max_replicas # fixed, always
repStr = "replica {}".format(numReplica)
self.execWtSql(wt, "create database {} {}"
.format(self._db.getName(), repStr) )
......@@ -1925,7 +1520,7 @@ class TaskDropDb(StateTransitionTask):
def _executeInternal(self, te: TaskExecutor, wt: WorkerThread):
self.execWtSql(wt, "drop database {}".format(self._db.getName()))
logger.debug("[OPS] database dropped at {}".format(time.time()))
Logging.debug("[OPS] database dropped at {}".format(time.time()))
class TaskCreateSuperTable(StateTransitionTask):
@classmethod
......@@ -1938,7 +1533,7 @@ class TaskCreateSuperTable(StateTransitionTask):
def _executeInternal(self, te: TaskExecutor, wt: WorkerThread):
if not self._db.exists(wt.getDbConn()):
logger.debug("Skipping task, no DB yet")
Logging.debug("Skipping task, no DB yet")
return
sTable = self._db.getFixedSuperTable() # type: TdSuperTable
......@@ -1973,7 +1568,7 @@ class TdSuperTable:
dbc.query("select TBNAME from {}.{}".format(dbName, self._stName)) # TODO: analyze result set later
except taos.error.ProgrammingError as err:
errno2 = Helper.convertErrno(err.errno)
logger.debug("[=] Failed to get tables from super table: errno=0x{:X}, msg: {}".format(errno2, err))
Logging.debug("[=] Failed to get tables from super table: errno=0x{:X}, msg: {}".format(errno2, err))
raise
qr = dbc.getQueryResult()
......@@ -2088,7 +1683,7 @@ class TaskReadData(StateTransitionTask):
dbc.execute("select {} from {}.{}".format(aggExpr, dbName, sTable.getName()))
except taos.error.ProgrammingError as err:
errno2 = Helper.convertErrno(err.errno)
logger.debug("[=] Read Failure: errno=0x{:X}, msg: {}, SQL: {}".format(errno2, err, dbc.getLastSql()))
Logging.debug("[=] Read Failure: errno=0x{:X}, msg: {}, SQL: {}".format(errno2, err, dbc.getLastSql()))
raise
class TaskDropSuperTable(StateTransitionTask):
......@@ -2119,7 +1714,7 @@ class TaskDropSuperTable(StateTransitionTask):
errno2 = Helper.convertErrno(err.errno)
if (errno2 in [0x362]): # mnode invalid table name
isSuccess = False
logger.debug("[DB] Acceptable error when dropping a table")
Logging.debug("[DB] Acceptable error when dropping a table")
continue # try to delete next regular table
if (not tickOutput):
......@@ -2199,20 +1794,19 @@ class TaskAddData(StateTransitionTask):
# Track which table is being actively worked on
activeTable: Set[int] = set()
# We use these two files to record operations to DB, useful for power-off
# tests
fAddLogReady = None
fAddLogDone = None
# We use these two files to record operations to DB, useful for power-off tests
fAddLogReady = None # type: TextIOWrapper
fAddLogDone = None # type: TextIOWrapper
@classmethod
def prepToRecordOps(cls):
if gConfig.record_ops:
if (cls.fAddLogReady is None):
logger.info(
Logging.info(
"Recording in a file operations to be performed...")
cls.fAddLogReady = open("add_log_ready.txt", "w")
if (cls.fAddLogDone is None):
logger.info("Recording in a file operations completed...")
Logging.info("Recording in a file operations completed...")
cls.fAddLogDone = open("add_log_done.txt", "w")
@classmethod
......@@ -2288,490 +1882,8 @@ class TaskAddData(StateTransitionTask):
self.activeTable.discard(i) # not raising an error, unlike remove
# Deterministic random number generator
class Dice():
seeded = False # static, uninitialized
@classmethod
def seed(cls, s): # static
if (cls.seeded):
raise RuntimeError(
"Cannot seed the random generator more than once")
cls.verifyRNG()
random.seed(s)
cls.seeded = True # TODO: protect against multi-threading
@classmethod
def verifyRNG(cls): # Verify that the RNG is determinstic
random.seed(0)
x1 = random.randrange(0, 1000)
x2 = random.randrange(0, 1000)
x3 = random.randrange(0, 1000)
if (x1 != 864 or x2 != 394 or x3 != 776):
raise RuntimeError("System RNG is not deterministic")
@classmethod
def throw(cls, stop): # get 0 to stop-1
return cls.throwRange(0, stop)
@classmethod
def throwRange(cls, start, stop): # up to stop-1
if (not cls.seeded):
raise RuntimeError("Cannot throw dice before seeding it")
return random.randrange(start, stop)
@classmethod
def choice(cls, cList):
return random.choice(cList)
class LoggingFilter(logging.Filter):
def filter(self, record: logging.LogRecord):
if (record.levelno >= logging.INFO):
return True # info or above always log
# Commenting out below to adjust...
# if msg.startswith("[TRD]"):
# return False
return True
class MyLoggingAdapter(logging.LoggerAdapter):
def process(self, msg, kwargs):
return "[{}]{}".format(threading.get_ident() % 10000, msg), kwargs
# return '[%s] %s' % (self.extra['connid'], msg), kwargs
class SvcManager:
def __init__(self):
print("Starting TDengine Service Manager")
# signal.signal(signal.SIGTERM, self.sigIntHandler) # Moved to MainExec
# signal.signal(signal.SIGINT, self.sigIntHandler)
# signal.signal(signal.SIGUSR1, self.sigUsrHandler) # different handler!
self.inSigHandler = False
# self._status = MainExec.STATUS_RUNNING # set inside
# _startTaosService()
self.svcMgrThread = None # type: ServiceManagerThread
self._lock = threading.Lock()
self._isRestarting = False
def _doMenu(self):
choice = ""
while True:
print("\nInterrupting Service Program, Choose an Action: ")
print("1: Resume")
print("2: Terminate")
print("3: Restart")
# Remember to update the if range below
# print("Enter Choice: ", end="", flush=True)
while choice == "":
choice = input("Enter Choice: ")
if choice != "":
break # done with reading repeated input
if choice in ["1", "2", "3"]:
break # we are done with whole method
print("Invalid choice, please try again.")
choice = "" # reset
return choice
def sigUsrHandler(self, signalNumber, frame):
print("Interrupting main thread execution upon SIGUSR1")
if self.inSigHandler: # already
print("Ignoring repeated SIG...")
return # do nothing if it's already not running
self.inSigHandler = True
choice = self._doMenu()
if choice == "1":
# TODO: can the sub-process be blocked due to us not reading from
# queue?
self.sigHandlerResume()
elif choice == "2":
self.stopTaosService()
elif choice == "3": # Restart
self.restart()
else:
raise RuntimeError("Invalid menu choice: {}".format(choice))
self.inSigHandler = False
def sigIntHandler(self, signalNumber, frame):
print("SvcManager: INT Signal Handler starting...")
if self.inSigHandler:
print("Ignoring repeated SIG_INT...")
return
self.inSigHandler = True
self.stopTaosService()
print("SvcManager: INT Signal Handler returning...")
self.inSigHandler = False
def sigHandlerResume(self):
print("Resuming TDengine service manager thread (main thread)...\n\n")
def _checkServiceManagerThread(self):
if self.svcMgrThread: # valid svc mgr thread
if self.svcMgrThread.isStopped(): # done?
self.svcMgrThread.procIpcBatch() # one last time. TODO: appropriate?
self.svcMgrThread = None # no more
def _procIpcAll(self):
while self.isRunning() or self.isRestarting() : # for as long as the svc mgr thread is still here
if self.isRunning():
self.svcMgrThread.procIpcBatch() # regular processing,
self._checkServiceManagerThread()
elif self.isRetarting():
print("Service restarting...")
time.sleep(0.5) # pause, before next round
print(
"Service Manager Thread (with subprocess) has ended, main thread now exiting...")
def startTaosService(self):
with self._lock:
if self.svcMgrThread:
raise RuntimeError("Cannot start TAOS service when one may already be running")
# Find if there's already a taosd service, and then kill it
for proc in psutil.process_iter():
if proc.name() == 'taosd':
print("Killing an existing TAOSD process in 2 seconds... press CTRL-C to interrupe")
time.sleep(2.0)
proc.kill()
# print("Process: {}".format(proc.name()))
self.svcMgrThread = ServiceManagerThread() # create the object
print("Attempting to start TAOS service started, printing out output...")
self.svcMgrThread.start()
self.svcMgrThread.procIpcBatch(trimToTarget=10, forceOutput=True) # for printing 10 lines
print("TAOS service started")
def stopTaosService(self, outputLines=20):
with self._lock:
if not self.isRunning():
logger.warning("Cannot stop TAOS service, not running")
return
print("Terminating Service Manager Thread (SMT) execution...")
self.svcMgrThread.stop()
if self.svcMgrThread.isStopped():
self.svcMgrThread.procIpcBatch(outputLines) # one last time
self.svcMgrThread = None
print("End of TDengine Service Output")
print("----- TDengine Service (managed by SMT) is now terminated -----\n")
else:
print("WARNING: SMT did not terminate as expected")
def run(self):
self.startTaosService()
self._procIpcAll() # pump/process all the messages, may encounter SIG + restart
if self.isRunning(): # if sig handler hasn't destroyed it by now
self.stopTaosService() # should have started already
def restart(self):
if self._isRestarting:
logger.warning("Cannot restart service when it's already restarting")
return
self._isRestarting = True
if self.isRunning():
self.stopTaosService()
else:
logger.warning("Service not running when restart requested")
self.startTaosService()
self._isRestarting = False
def isRunning(self):
return self.svcMgrThread != None
def isRestarting(self):
return self._isRestarting
class ServiceManagerThread:
MAX_QUEUE_SIZE = 10000
def __init__(self):
self._tdeSubProcess = None # type: TdeSubProcess
self._thread = None
self._status = None
def getStatus(self):
return self._status
def isRunning(self):
# return self._thread and self._thread.is_alive()
return self._status == MainExec.STATUS_RUNNING
def isStopping(self):
return self._status == MainExec.STATUS_STOPPING
def isStopped(self):
return self._status == MainExec.STATUS_STOPPED
# Start the thread (with sub process), and wait for the sub service
# to become fully operational
def start(self):
if self._thread:
raise RuntimeError("Unexpected _thread")
if self._tdeSubProcess:
raise RuntimeError("TDengine sub process already created/running")
self._status = MainExec.STATUS_STARTING
self._tdeSubProcess = TdeSubProcess()
self._tdeSubProcess.start()
self._ipcQueue = Queue()
self._thread = threading.Thread( # First thread captures server OUTPUT
target=self.svcOutputReader,
args=(self._tdeSubProcess.getStdOut(), self._ipcQueue))
self._thread.daemon = True # thread dies with the program
self._thread.start()
self._thread2 = threading.Thread( # 2nd thread captures server ERRORs
target=self.svcErrorReader,
args=(self._tdeSubProcess.getStdErr(), self._ipcQueue))
self._thread2.daemon = True # thread dies with the program
self._thread2.start()
# wait for service to start
for i in range(0, 100):
time.sleep(1.0)
# self.procIpcBatch() # don't pump message during start up
print("_zz_", end="", flush=True)
if self._status == MainExec.STATUS_RUNNING:
logger.info("[] TDengine service READY to process requests")
return # now we've started
# TODO: handle this better?
self.procIpcBatch(100, True) # display output before cronking out, trim to last 20 msgs, force output
raise RuntimeError("TDengine service did not start successfully")
def stop(self):
# can be called from both main thread or signal handler
print("Terminating TDengine service running as the sub process...")
if self.isStopped():
print("Service already stopped")
return
if self.isStopping():
print("Service is already being stopped")
return
# Linux will send Control-C generated SIGINT to the TDengine process
# already, ref:
# https://unix.stackexchange.com/questions/176235/fork-and-how-signals-are-delivered-to-processes
if not self._tdeSubProcess:
raise RuntimeError("sub process object missing")
self._status = MainExec.STATUS_STOPPING
retCode = self._tdeSubProcess.stop()
print("Attempted to stop sub process, got return code: {}".format(retCode))
if (retCode==-11): # SGV
logger.error("[[--ERROR--]]: TDengine service SEGV fault (check core file!)")
if self._tdeSubProcess.isRunning(): # still running
print("FAILED to stop sub process, it is still running... pid = {}".format(
self._tdeSubProcess.getPid()))
else:
self._tdeSubProcess = None # not running any more
self.join() # stop the thread, change the status, etc.
def join(self):
# TODO: sanity check
if not self.isStopping():
raise RuntimeError(
"Unexpected status when ending svc mgr thread: {}".format(
self._status))
if self._thread:
self._thread.join()
self._thread = None
self._status = MainExec.STATUS_STOPPED
# STD ERR thread
self._thread2.join()
self._thread2 = None
else:
print("Joining empty thread, doing nothing")
def _trimQueue(self, targetSize):
if targetSize <= 0:
return # do nothing
q = self._ipcQueue
if (q.qsize() <= targetSize): # no need to trim
return
logger.debug("Triming IPC queue to target size: {}".format(targetSize))
itemsToTrim = q.qsize() - targetSize
for i in range(0, itemsToTrim):
try:
q.get_nowait()
except Empty:
break # break out of for loop, no more trimming
TD_READY_MSG = "TDengine is initialized successfully"
def procIpcBatch(self, trimToTarget=0, forceOutput=False):
self._trimQueue(trimToTarget) # trim if necessary
# Process all the output generated by the underlying sub process,
# managed by IO thread
print("<", end="", flush=True)
while True:
try:
line = self._ipcQueue.get_nowait() # getting output at fast speed
self._printProgress("_o")
except Empty:
# time.sleep(2.3) # wait only if there's no output
# no more output
print(".>", end="", flush=True)
return # we are done with THIS BATCH
else: # got line, printing out
if forceOutput:
logger.info(line)
else:
logger.debug(line)
print(">", end="", flush=True)
_ProgressBars = ["--", "//", "||", "\\\\"]
def _printProgress(self, msg): # TODO: assuming 2 chars
print(msg, end="", flush=True)
pBar = self._ProgressBars[Dice.throw(4)]
print(pBar, end="", flush=True)
print('\b\b\b\b', end="", flush=True)
def svcOutputReader(self, out: IO, queue):
# Important Reference: https://stackoverflow.com/questions/375427/non-blocking-read-on-a-subprocess-pipe-in-python
# print("This is the svcOutput Reader...")
# for line in out :
for line in iter(out.readline, b''):
# print("Finished reading a line: {}".format(line))
# print("Adding item to queue...")
try:
line = line.decode("utf-8").rstrip()
except UnicodeError:
print("\nNon-UTF8 server output: {}\n".format(line))
# This might block, and then causing "out" buffer to block
queue.put(line)
self._printProgress("_i")
if self._status == MainExec.STATUS_STARTING: # we are starting, let's see if we have started
if line.find(self.TD_READY_MSG) != -1: # found
logger.info("Waiting for the service to become FULLY READY")
time.sleep(1.0) # wait for the server to truly start. TODO: remove this
logger.info("Service is now FULLY READY")
self._status = MainExec.STATUS_RUNNING
# Trim the queue if necessary: TODO: try this 1 out of 10 times
self._trimQueue(self.MAX_QUEUE_SIZE * 9 // 10) # trim to 90% size
if self.isStopping(): # TODO: use thread status instead
# WAITING for stopping sub process to finish its outptu
print("_w", end="", flush=True)
# queue.put(line)
# meaning sub process must have died
print("\nNo more output from IO thread managing TDengine service")
out.close()
def svcErrorReader(self, err: IO, queue):
for line in iter(err.readline, b''):
print("\nTDengine Service (taosd) ERROR (from stderr): {}".format(line))
class TdeSubProcess:
def __init__(self):
self.subProcess = None
def getStdOut(self):
return self.subProcess.stdout
def getStdErr(self):
return self.subProcess.stderr
def isRunning(self):
return self.subProcess is not None
def getPid(self):
return self.subProcess.pid
def getBuildPath(self):
selfPath = os.path.dirname(os.path.realpath(__file__))
if ("community" in selfPath):
projPath = selfPath[:selfPath.find("communit")]
else:
projPath = selfPath[:selfPath.find("tests")]
for root, dirs, files in os.walk(projPath):
if ("taosd" in files):
rootRealPath = os.path.dirname(os.path.realpath(root))
if ("packaging" not in rootRealPath):
buildPath = root[:len(root) - len("/build/bin")]
break
return buildPath
def start(self):
ON_POSIX = 'posix' in sys.builtin_module_names
taosdPath = self.getBuildPath() + "/build/bin/taosd"
cfgPath = self.getBuildPath() + "/test/cfg"
# Delete the log files
logPath = self.getBuildPath() + "/test/log"
# ref: https://stackoverflow.com/questions/1995373/deleting-all-files-in-a-directory-with-python/1995397
# filelist = [ f for f in os.listdir(logPath) ] # if f.endswith(".bak") ]
# for f in filelist:
# filePath = os.path.join(logPath, f)
# print("Removing log file: {}".format(filePath))
# os.remove(filePath)
if os.path.exists(logPath):
logPathSaved = logPath + "_" + time.strftime('%Y-%m-%d-%H-%M-%S')
logger.info("Saving old log files to: {}".format(logPathSaved))
os.rename(logPath, logPathSaved)
# os.mkdir(logPath) # recreate, no need actually, TDengine will auto-create with proper perms
svcCmd = [taosdPath, '-c', cfgPath]
# svcCmdSingle = "{} -c {}".format(taosdPath, cfgPath)
# svcCmd = ['vmstat', '1']
if self.subProcess: # already there
raise RuntimeError("Corrupt process state")
# print("Starting service: {}".format(svcCmd))
self.subProcess = subprocess.Popen(
svcCmd, shell=False,
# svcCmdSingle, shell=True, # capture core dump?
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
# bufsize=1, # not supported in binary mode
close_fds=ON_POSIX
) # had text=True, which interferred with reading EOF
def stop(self):
if not self.subProcess:
print("Sub process already stopped")
return -1
retCode = self.subProcess.poll() # contains real sub process return code
if retCode: # valid return code, process ended
self.subProcess = None
else: # process still alive, let's interrupt it
print(
"Sub process is running, sending SIG_INT and waiting for it to terminate...")
# sub process should end, then IPC queue should end, causing IO
# thread to end
self.subProcess.send_signal(signal.SIGINT)
try:
self.subProcess.wait(10)
retCode = self.subProcess.returncode
except subprocess.TimeoutExpired as err:
print("Time out waiting for TDengine service process to exit")
retCode = -3
else:
print("TDengine service process terminated successfully from SIG_INT")
retCode = -4
self.subProcess = None
return retCode
class ThreadStacks: # stack info for all threads
def __init__(self):
......@@ -2808,17 +1920,17 @@ class ClientManager:
# signal.signal(signal.SIGTERM, self.sigIntHandler)
# signal.signal(signal.SIGINT, self.sigIntHandler)
self._status = MainExec.STATUS_RUNNING
self._status = Status.STATUS_RUNNING
self.tc = None
self.inSigHandler = False
def sigIntHandler(self, signalNumber, frame):
if self._status != MainExec.STATUS_RUNNING:
if self._status != Status.STATUS_RUNNING:
print("Repeated SIGINT received, forced exit...")
# return # do nothing if it's already not running
sys.exit(-1)
self._status = MainExec.STATUS_STOPPING # immediately set our status
self._status = Status.STATUS_STOPPING # immediately set our status
print("ClientManager: Terminating program...")
self.tc.requestToStop()
......@@ -2898,15 +2010,20 @@ class ClientManager:
# self._printLastNumbers()
global gConfig
dbManager = DbManager() # Regular function
# Prepare Tde Instance
global gContainer
tInst = gContainer.defTdeInstance = TdeInstance() # "subdir to hold the instance"
dbManager = DbManager(gConfig.connector_type, tInst.getDbTarget()) # Regular function
thPool = ThreadPool(gConfig.num_threads, gConfig.max_steps)
self.tc = ThreadCoordinator(thPool, dbManager)
print("Starting client instance to: {}".format(tInst))
self.tc.run()
# print("exec stats: {}".format(self.tc.getExecStats()))
# print("TC failed = {}".format(self.tc.isFailed()))
if svcMgr: # gConfig.auto_start_service:
svcMgr.stopTaosService()
svcMgr.stopTaosServices()
svcMgr = None
# Print exec status, etc., AFTER showing messages from the server
self.conclude()
......@@ -2936,18 +2053,10 @@ class ClientManager:
# self.tc.getDbManager().cleanUp() # clean up first, so we can show ZERO db connections
self.tc.printStats()
class MainExec:
STATUS_STARTING = 1
STATUS_RUNNING = 2
STATUS_STOPPING = 3
STATUS_STOPPED = 4
def __init__(self):
self._clientMgr = None
self._svcMgr = None
self._svcMgr = None # type: ServiceManager
signal.signal(signal.SIGTERM, self.sigIntHandler)
signal.signal(signal.SIGINT, self.sigIntHandler)
......@@ -2968,73 +2077,32 @@ class MainExec:
def runClient(self):
global gSvcMgr
if gConfig.auto_start_service:
self._svcMgr = SvcManager()
gSvcMgr = self._svcMgr # hack alert
self._svcMgr.startTaosService() # we start, don't run
gSvcMgr = self._svcMgr = ServiceManager(1) # hack alert
gSvcMgr.startTaosServices() # we start, don't run
self._clientMgr = ClientManager()
ret = None
try:
ret = self._clientMgr.run(self._svcMgr) # stop TAOS service inside
except requests.exceptions.ConnectionError as err:
logger.warning("Failed to open REST connection to DB: {}".format(err.getMessage()))
Logging.warning("Failed to open REST connection to DB: {}".format(err.getMessage()))
# don't raise
return ret
def runService(self):
global gSvcMgr
self._svcMgr = SvcManager()
gSvcMgr = self._svcMgr # save it in a global variable TODO: hack alert
gSvcMgr = self._svcMgr = ServiceManager(gConfig.num_dnodes) # save it in a global variable TODO: hack alert
self._svcMgr.run() # run to some end state
self._svcMgr = None
gSvcMgr = None
gSvcMgr.run() # run to some end state
gSvcMgr = self._svcMgr = None
def runTemp(self): # for debugging purposes
# # Hack to exercise reading from disk, imcreasing coverage. TODO: fix
# dbc = dbState.getDbConn()
# sTbName = dbState.getFixedSuperTableName()
# dbc.execute("create database if not exists db")
# if not dbState.getState().equals(StateEmpty()):
# dbc.execute("use db")
# rTables = None
# try: # the super table may not exist
# sql = "select TBNAME from db.{}".format(sTbName)
# logger.info("Finding out tables in super table: {}".format(sql))
# dbc.query(sql) # TODO: analyze result set later
# logger.info("Fetching result")
# rTables = dbc.getQueryResult()
# logger.info("Result: {}".format(rTables))
# except taos.error.ProgrammingError as err:
# logger.info("Initial Super table OPS error: {}".format(err))
# # sys.exit()
# if ( not rTables == None):
# # print("rTables[0] = {}, type = {}".format(rTables[0], type(rTables[0])))
# try:
# for rTbName in rTables : # regular tables
# ds = dbState
# logger.info("Inserting into table: {}".format(rTbName[0]))
# sql = "insert into db.{} values ('{}', {});".format(
# rTbName[0],
# ds.getNextTick(), ds.getNextInt())
# dbc.execute(sql)
# for rTbName in rTables : # regular tables
# dbc.query("select * from db.{}".format(rTbName[0])) # TODO: check success failure
# logger.info("Initial READING operation is successful")
# except taos.error.ProgrammingError as err:
# logger.info("Initial WRITE/READ error: {}".format(err))
# Sandbox testing code
# dbc = dbState.getDbConn()
# while True:
# rows = dbc.query("show databases")
# print("Rows: {}, time={}".format(rows, time.time()))
return
def init(self): # TODO: refactor
global gContainer
gContainer = Container() # micky-mouse DI
global gSvcMgr # TODO: refactor away
gSvcMgr = None
def main():
# Super cool Python argument library:
# https://docs.python.org/3/library/argparse.html
parser = argparse.ArgumentParser(
......@@ -3047,27 +2115,6 @@ def main():
'''))
# parser.add_argument('-a', '--auto-start-service', action='store_true',
# help='Automatically start/stop the TDengine service (default: false)')
# parser.add_argument('-c', '--connector-type', action='store', default='native', type=str,
# help='Connector type to use: native, rest, or mixed (default: 10)')
# parser.add_argument('-d', '--debug', action='store_true',
# help='Turn on DEBUG mode for more logging (default: false)')
# parser.add_argument('-e', '--run-tdengine', action='store_true',
# help='Run TDengine service in foreground (default: false)')
# parser.add_argument('-l', '--larger-data', action='store_true',
# help='Write larger amount of data during write operations (default: false)')
# parser.add_argument('-p', '--per-thread-db-connection', action='store_true',
# help='Use a single shared db connection (default: false)')
# parser.add_argument('-r', '--record-ops', action='store_true',
# help='Use a pair of always-fsynced fils to record operations performing + performed, for power-off tests (default: false)')
# parser.add_argument('-s', '--max-steps', action='store', default=1000, type=int,
# help='Maximum number of steps to run (default: 100)')
# parser.add_argument('-t', '--num-threads', action='store', default=5, type=int,
# help='Number of threads to run (default: 10)')
# parser.add_argument('-x', '--continue-on-exception', action='store_true',
# help='Continue execution after encountering unexpected/disallowed errors/exceptions (default: false)')
parser.add_argument(
'-a',
'--auto-start-service',
......@@ -3097,6 +2144,13 @@ def main():
'--run-tdengine',
action='store_true',
help='Run TDengine service in foreground (default: false)')
parser.add_argument(
'-g',
'--ignore-errors',
action='store',
default=None,
type=str,
help='Ignore error codes, comma separated, 0x supported (default: None)')
parser.add_argument(
'-i',
'--max-replicas',
......@@ -3109,6 +2163,18 @@ def main():
'--larger-data',
action='store_true',
help='Write larger amount of data during write operations (default: false)')
parser.add_argument(
'-n',
'--dynamic-db-table-names',
action='store_true',
help='Use non-fixed names for dbs/tables, useful for multi-instance executions (default: false)')
parser.add_argument(
'-o',
'--num-dnodes',
action='store',
default=1,
type=int,
help='Number of Dnodes to initialize, used with -e option. (default: 1)')
parser.add_argument(
'-p',
'--per-thread-db-connection',
......@@ -3147,32 +2213,41 @@ def main():
global gConfig
gConfig = parser.parse_args()
# Logging Stuff
global logger
_logger = logging.getLogger('CrashGen') # real logger
_logger.addFilter(LoggingFilter())
ch = logging.StreamHandler()
_logger.addHandler(ch)
# Logging adapter, to be used as a logger
logger = MyLoggingAdapter(_logger, [])
if (gConfig.debug):
logger.setLevel(logging.DEBUG) # default seems to be INFO
else:
logger.setLevel(logging.INFO)
Logging.clsInit(gConfig)
Dice.seed(0) # initial seeding of dice
# Run server or client
mExec = MainExec()
def run(self):
if gConfig.run_tdengine: # run server
mExec.runService()
try:
self.runService()
return 0 # success
except ConnectionError as err:
Logging.error("Failed to make DB connection, please check DB instance manually")
return -1 # failure
else:
return mExec.runClient()
return self.runClient()
class Container():
_propertyList = {'defTdeInstance'}
def __init__(self):
self._cargo = {} # No cargo at the beginning
def _verifyValidProperty(self, name):
if not name in self._propertyList:
raise CrashGenError("Invalid container property: {}".format(name))
# Called for an attribute, when other mechanisms fail (compare to __getattribute__)
def __getattr__(self, name):
self._verifyValidProperty(name)
return self._cargo[name] # just a simple lookup
def __setattr__(self, name, value):
if name == '_cargo' : # reserved vars
super().__setattr__(name, value)
return
self._verifyValidProperty(name)
self._cargo[name] = value
if __name__ == "__main__":
exitCode = main()
# print("Exiting with code: {}".format(exitCode))
sys.exit(exitCode)
tests/pytest/crash_gen/db.py 0 → 100644
浏览文件 @ 39d9e6b4
from __future__ import annotations
import sys
import time
import threading
import requests
from requests.auth import HTTPBasicAuth
import taos
from util.sql import *
from util.cases import *
from util.dnodes import *
from util.log import *
from .misc import Logging, CrashGenError, Helper, Dice
import os
import datetime
# from .service_manager import TdeInstance
class DbConn:
TYPE_NATIVE = "native-c"
TYPE_REST = "rest-api"
TYPE_INVALID = "invalid"
@classmethod
def create(cls, connType, dbTarget):
if connType == cls.TYPE_NATIVE:
return DbConnNative(dbTarget)
elif connType == cls.TYPE_REST:
return DbConnRest(dbTarget)
else:
raise RuntimeError(
"Unexpected connection type: {}".format(connType))
@classmethod
def createNative(cls, dbTarget) -> DbConn:
return cls.create(cls.TYPE_NATIVE, dbTarget)
@classmethod
def createRest(cls, dbTarget) -> DbConn:
return cls.create(cls.TYPE_REST, dbTarget)
def __init__(self, dbTarget):
self.isOpen = False
self._type = self.TYPE_INVALID
self._lastSql = None
self._dbTarget = dbTarget
def __repr__(self):
return "[DbConn: type={}, target={}]".format(self._type, self._dbTarget)
def getLastSql(self):
return self._lastSql
def open(self):
if (self.isOpen):
raise RuntimeError("Cannot re-open an existing DB connection")
# below implemented by child classes
self.openByType()
Logging.debug("[DB] data connection opened: {}".format(self))
self.isOpen = True
def close(self):
raise RuntimeError("Unexpected execution, should be overriden")
def queryScalar(self, sql) -> int:
return self._queryAny(sql)
def queryString(self, sql) -> str:
return self._queryAny(sql)
def _queryAny(self, sql): # actual query result as an int
if (not self.isOpen):
raise RuntimeError("Cannot query database until connection is open")
nRows = self.query(sql)
if nRows != 1:
raise taos.error.ProgrammingError(
"Unexpected result for query: {}, rows = {}".format(sql, nRows),
(0x991 if nRows==0 else 0x992)
)
if self.getResultRows() != 1 or self.getResultCols() != 1:
raise RuntimeError("Unexpected result set for query: {}".format(sql))
return self.getQueryResult()[0][0]
def use(self, dbName):
self.execute("use {}".format(dbName))
def existsDatabase(self, dbName: str):
''' Check if a certain database exists '''
self.query("show databases")
dbs = [v[0] for v in self.getQueryResult()] # ref: https://stackoverflow.com/questions/643823/python-list-transformation
# ret2 = dbName in dbs
# print("dbs = {}, str = {}, ret2={}, type2={}".format(dbs, dbName,ret2, type(dbName)))
return dbName in dbs # TODO: super weird type mangling seen, once here
def hasTables(self):
return self.query("show tables") > 0
def execute(self, sql):
''' Return the number of rows affected'''
raise RuntimeError("Unexpected execution, should be overriden")
def safeExecute(self, sql):
'''Safely execute any SQL query, returning True/False upon success/failure'''
try:
self.execute(sql)
return True # ignore num of results, return success
except taos.error.ProgrammingError as err:
return False # failed, for whatever TAOS reason
# Not possile to reach here, non-TAOS exception would have been thrown
def query(self, sql) -> int: # return num rows returned
''' Return the number of rows affected'''
raise RuntimeError("Unexpected execution, should be overriden")
def openByType(self):
raise RuntimeError("Unexpected execution, should be overriden")
def getQueryResult(self):
raise RuntimeError("Unexpected execution, should be overriden")
def getResultRows(self):
raise RuntimeError("Unexpected execution, should be overriden")
def getResultCols(self):
raise RuntimeError("Unexpected execution, should be overriden")
# Sample: curl -u root:taosdata -d "show databases" localhost:6020/rest/sql
class DbConnRest(DbConn):
REST_PORT_INCREMENT = 11
def __init__(self, dbTarget: DbTarget):
super().__init__(dbTarget)
self._type = self.TYPE_REST
restPort = dbTarget.port + 11
self._url = "http://{}:{}/rest/sql".format(
dbTarget.hostAddr, dbTarget.port + self.REST_PORT_INCREMENT)
self._result = None
def openByType(self): # Open connection
pass # do nothing, always open
def close(self):
if (not self.isOpen):
raise RuntimeError("Cannot clean up database until connection is open")
# Do nothing for REST
Logging.debug("[DB] REST Database connection closed")
self.isOpen = False
def _doSql(self, sql):
self._lastSql = sql # remember this, last SQL attempted
try:
r = requests.post(self._url,
data = sql,
auth = HTTPBasicAuth('root', 'taosdata'))
except:
print("REST API Failure (TODO: more info here)")
raise
rj = r.json()
# Sanity check for the "Json Result"
if ('status' not in rj):
raise RuntimeError("No status in REST response")
if rj['status'] == 'error': # clearly reported error
if ('code' not in rj): # error without code
raise RuntimeError("REST error return without code")
errno = rj['code'] # May need to massage this in the future
# print("Raising programming error with REST return: {}".format(rj))
raise taos.error.ProgrammingError(
rj['desc'], errno) # todo: check existance of 'desc'
if rj['status'] != 'succ': # better be this
raise RuntimeError(
"Unexpected REST return status: {}".format(
rj['status']))
nRows = rj['rows'] if ('rows' in rj) else 0
self._result = rj
return nRows
def execute(self, sql):
if (not self.isOpen):
raise RuntimeError(
"Cannot execute database commands until connection is open")
Logging.debug("[SQL-REST] Executing SQL: {}".format(sql))
nRows = self._doSql(sql)
Logging.debug(
"[SQL-REST] Execution Result, nRows = {}, SQL = {}".format(nRows, sql))
return nRows
def query(self, sql): # return rows affected
return self.execute(sql)
def getQueryResult(self):
return self._result['data']
def getResultRows(self):
print(self._result)
raise RuntimeError("TBD") # TODO: finish here to support -v under -c rest
# return self._tdSql.queryRows
def getResultCols(self):
print(self._result)
raise RuntimeError("TBD")
# Duplicate code from TDMySQL, TODO: merge all this into DbConnNative
class MyTDSql:
# Class variables
_clsLock = threading.Lock() # class wide locking
longestQuery = None # type: str
longestQueryTime = 0.0 # seconds
lqStartTime = 0.0
# lqEndTime = 0.0 # Not needed, as we have the two above already
def __init__(self, hostAddr, cfgPath):
# Make the DB connection
self._conn = taos.connect(host=hostAddr, config=cfgPath)
self._cursor = self._conn.cursor()
self.queryRows = 0
self.queryCols = 0
self.affectedRows = 0
# def init(self, cursor, log=True):
# self.cursor = cursor
# if (log):
# caller = inspect.getframeinfo(inspect.stack()[1][0])
# self.cursor.log(caller.filename + ".sql")
def close(self):
self._cursor.close() # can we double close?
self._conn.close() # TODO: very important, cursor close does NOT close DB connection!
self._cursor.close()
def _execInternal(self, sql):
startTime = time.time()
ret = self._cursor.execute(sql)
# print("\nSQL success: {}".format(sql))
queryTime = time.time() - startTime
# Record the query time
cls = self.__class__
if queryTime > (cls.longestQueryTime + 0.01) :
with cls._clsLock:
cls.longestQuery = sql
cls.longestQueryTime = queryTime
cls.lqStartTime = startTime
return ret
def query(self, sql):
self.sql = sql
try:
self._execInternal(sql)
self.queryResult = self._cursor.fetchall()
self.queryRows = len(self.queryResult)
self.queryCols = len(self._cursor.description)
except Exception as e:
# caller = inspect.getframeinfo(inspect.stack()[1][0])
# args = (caller.filename, caller.lineno, sql, repr(e))
# tdLog.exit("%s(%d) failed: sql:%s, %s" % args)
raise
return self.queryRows
def execute(self, sql):
self.sql = sql
try:
self.affectedRows = self._execInternal(sql)
except Exception as e:
# caller = inspect.getframeinfo(inspect.stack()[1][0])
# args = (caller.filename, caller.lineno, sql, repr(e))
# tdLog.exit("%s(%d) failed: sql:%s, %s" % args)
raise
return self.affectedRows
class DbTarget:
def __init__(self, cfgPath, hostAddr, port):
self.cfgPath = cfgPath
self.hostAddr = hostAddr
self.port = port
def __repr__(self):
return "[DbTarget: cfgPath={}, host={}:{}]".format(
Helper.getFriendlyPath(self.cfgPath), self.hostAddr, self.port)
def getEp(self):
return "{}:{}".format(self.hostAddr, self.port)
class DbConnNative(DbConn):
# Class variables
_lock = threading.Lock()
# _connInfoDisplayed = False # TODO: find another way to display this
totalConnections = 0 # Not private
def __init__(self, dbTarget):
super().__init__(dbTarget)
self._type = self.TYPE_NATIVE
self._conn = None
# self._cursor = None
def openByType(self): # Open connection
# global gContainer
# tInst = tInst or gContainer.defTdeInstance # set up in ClientManager, type: TdeInstance
# cfgPath = self.getBuildPath() + "/test/cfg"
# cfgPath = tInst.getCfgDir()
# hostAddr = tInst.getHostAddr()
cls = self.__class__ # Get the class, to access class variables
with cls._lock: # force single threading for opening DB connections. # TODO: whaaat??!!!
dbTarget = self._dbTarget
# if not cls._connInfoDisplayed:
# cls._connInfoDisplayed = True # updating CLASS variable
Logging.debug("Initiating TAOS native connection to {}".format(dbTarget))
# Make the connection
# self._conn = taos.connect(host=hostAddr, config=cfgPath) # TODO: make configurable
# self._cursor = self._conn.cursor()
# Record the count in the class
self._tdSql = MyTDSql(dbTarget.hostAddr, dbTarget.cfgPath) # making DB connection
cls.totalConnections += 1
self._tdSql.execute('reset query cache')
# self._cursor.execute('use db') # do this at the beginning of every
# Open connection
# self._tdSql = MyTDSql()
# self._tdSql.init(self._cursor)
def close(self):
if (not self.isOpen):
raise RuntimeError("Cannot clean up database until connection is open")
self._tdSql.close()
# Decrement the class wide counter
cls = self.__class__ # Get the class, to access class variables
with cls._lock:
cls.totalConnections -= 1
Logging.debug("[DB] Database connection closed")
self.isOpen = False
def execute(self, sql):
if (not self.isOpen):
raise RuntimeError("Cannot execute database commands until connection is open")
Logging.debug("[SQL] Executing SQL: {}".format(sql))
self._lastSql = sql
nRows = self._tdSql.execute(sql)
Logging.debug(
"[SQL] Execution Result, nRows = {}, SQL = {}".format(
nRows, sql))
return nRows
def query(self, sql): # return rows affected
if (not self.isOpen):
raise RuntimeError(
"Cannot query database until connection is open")
Logging.debug("[SQL] Executing SQL: {}".format(sql))
self._lastSql = sql
nRows = self._tdSql.query(sql)
Logging.debug(
"[SQL] Query Result, nRows = {}, SQL = {}".format(
nRows, sql))
return nRows
# results are in: return self._tdSql.queryResult
def getQueryResult(self):
return self._tdSql.queryResult
def getResultRows(self):
return self._tdSql.queryRows
def getResultCols(self):
return self._tdSql.queryCols
class DbManager():
''' This is a wrapper around DbConn(), to make it easier to use.
TODO: rename this to DbConnManager
'''
def __init__(self, cType, dbTarget):
# self.tableNumQueue = LinearQueue() # TODO: delete?
# self.openDbServerConnection()
self._dbConn = DbConn.createNative(dbTarget) if (
cType == 'native') else DbConn.createRest(dbTarget)
try:
self._dbConn.open() # may throw taos.error.ProgrammingError: disconnected
except taos.error.ProgrammingError as err:
# print("Error type: {}, msg: {}, value: {}".format(type(err), err.msg, err))
if (err.msg == 'client disconnected'): # cannot open DB connection
print(
"Cannot establish DB connection, please re-run script without parameter, and follow the instructions.")
sys.exit(2)
else:
print("Failed to connect to DB, errno = {}, msg: {}"
.format(Helper.convertErrno(err.errno), err.msg))
raise
except BaseException:
print("[=] Unexpected exception")
raise
# Do this after dbConn is in proper shape
# Moved to Database()
# self._stateMachine = StateMechine(self._dbConn)
def getDbConn(self):
return self._dbConn
# TODO: not used any more, to delete
def pickAndAllocateTable(self): # pick any table, and "use" it
return self.tableNumQueue.pickAndAllocate()
# TODO: Not used any more, to delete
def addTable(self):
with self._lock:
tIndex = self.tableNumQueue.push()
return tIndex
# Not used any more, to delete
def releaseTable(self, i): # return the table back, so others can use it
self.tableNumQueue.release(i)
# TODO: not used any more, delete
def getTableNameToDelete(self):
tblNum = self.tableNumQueue.pop() # TODO: race condition!
if (not tblNum): # maybe false
return False
return "table_{}".format(tblNum)
def cleanUp(self):
self._dbConn.close()
tests/pytest/crash_gen/misc.py 0 → 100644
浏览文件 @ 39d9e6b4
import threading
import random
import logging
import os
class CrashGenError(Exception):
def __init__(self, msg=None, errno=None):
self.msg = msg
self.errno = errno
def __str__(self):
return self.msg
class LoggingFilter(logging.Filter):
def filter(self, record: logging.LogRecord):
if (record.levelno >= logging.INFO):
return True # info or above always log
# Commenting out below to adjust...
# if msg.startswith("[TRD]"):
# return False
return True
class MyLoggingAdapter(logging.LoggerAdapter):
def process(self, msg, kwargs):
return "[{}] {}".format(threading.get_ident() % 10000, msg), kwargs
# return '[%s] %s' % (self.extra['connid'], msg), kwargs
class Logging:
logger = None
@classmethod
def getLogger(cls):
return logger
@classmethod
def clsInit(cls, gConfig): # TODO: refactor away gConfig
if cls.logger:
return
# Logging Stuff
# global misc.logger
_logger = logging.getLogger('CrashGen') # real logger
_logger.addFilter(LoggingFilter())
ch = logging.StreamHandler()
_logger.addHandler(ch)
# Logging adapter, to be used as a logger
print("setting logger variable")
# global logger
cls.logger = MyLoggingAdapter(_logger, [])
if (gConfig.debug):
cls.logger.setLevel(logging.DEBUG) # default seems to be INFO
else:
cls.logger.setLevel(logging.INFO)
@classmethod
def info(cls, msg):
cls.logger.info(msg)
@classmethod
def debug(cls, msg):
cls.logger.debug(msg)
@classmethod
def warning(cls, msg):
cls.logger.warning(msg)
@classmethod
def error(cls, msg):
cls.logger.error(msg)
class Status:
STATUS_STARTING = 1
STATUS_RUNNING = 2
STATUS_STOPPING = 3
STATUS_STOPPED = 4
def __init__(self, status):
self.set(status)
def __repr__(self):
return "[Status: v={}]".format(self._status)
def set(self, status):
self._status = status
def get(self):
return self._status
def isStarting(self):
return self._status == Status.STATUS_STARTING
def isRunning(self):
# return self._thread and self._thread.is_alive()
return self._status == Status.STATUS_RUNNING
def isStopping(self):
return self._status == Status.STATUS_STOPPING
def isStopped(self):
return self._status == Status.STATUS_STOPPED
def isStable(self):
return self.isRunning() or self.isStopped()
# Deterministic random number generator
class Dice():
seeded = False # static, uninitialized
@classmethod
def seed(cls, s): # static
if (cls.seeded):
raise RuntimeError(
"Cannot seed the random generator more than once")
cls.verifyRNG()
random.seed(s)
cls.seeded = True # TODO: protect against multi-threading
@classmethod
def verifyRNG(cls): # Verify that the RNG is determinstic
random.seed(0)
x1 = random.randrange(0, 1000)
x2 = random.randrange(0, 1000)
x3 = random.randrange(0, 1000)
if (x1 != 864 or x2 != 394 or x3 != 776):
raise RuntimeError("System RNG is not deterministic")
@classmethod
def throw(cls, stop): # get 0 to stop-1
return cls.throwRange(0, stop)
@classmethod
def throwRange(cls, start, stop): # up to stop-1
if (not cls.seeded):
raise RuntimeError("Cannot throw dice before seeding it")
return random.randrange(start, stop)
@classmethod
def choice(cls, cList):
return random.choice(cList)
class Helper:
@classmethod
def convertErrno(cls, errno):
return errno if (errno > 0) else 0x80000000 + errno
@classmethod
def getFriendlyPath(cls, path): # returns .../xxx/yyy
ht1 = os.path.split(path)
ht2 = os.path.split(ht1[0])
return ".../" + ht2[1] + '/' + ht1[1]
class Progress:
STEP_BOUNDARY = 0
BEGIN_THREAD_STEP = 1
END_THREAD_STEP = 2
SERVICE_HEART_BEAT= 3
tokens = {
STEP_BOUNDARY: '.',
BEGIN_THREAD_STEP: '[',
END_THREAD_STEP: '] ',
SERVICE_HEART_BEAT: '.Y.'
}
@classmethod
def emit(cls, token):
print(cls.tokens[token], end="", flush=True)
tests/pytest/crash_gen/service_manager.py 0 → 100644
浏览文件 @ 39d9e6b4
import os
import io
import sys
import threading
import signal
import logging
import time
import subprocess
from typing import IO, List
try:
import psutil
except:
print("Psutil module needed, please install: sudo pip3 install psutil")
sys.exit(-1)
from queue import Queue, Empty
from .misc import Logging, Status, CrashGenError, Dice, Helper, Progress
from .db import DbConn, DbTarget
class TdeInstance():
"""
A class to capture the *static* information of a TDengine instance,
including the location of the various files/directories, and basica
configuration.
"""
@classmethod
def _getBuildPath(cls):
selfPath = os.path.dirname(os.path.realpath(__file__))
if ("community" in selfPath):
projPath = selfPath[:selfPath.find("communit")]
else:
projPath = selfPath[:selfPath.find("tests")]
buildPath = None
for root, dirs, files in os.walk(projPath):
if ("taosd" in files):
rootRealPath = os.path.dirname(os.path.realpath(root))
if ("packaging" not in rootRealPath):
buildPath = root[:len(root) - len("/build/bin")]
break
if buildPath == None:
raise RuntimeError("Failed to determine buildPath, selfPath={}, projPath={}"
.format(selfPath, projPath))
return buildPath
def __init__(self, subdir='test', tInstNum=0, port=6030, fepPort=6030):
self._buildDir = self._getBuildPath()
self._subdir = '/' + subdir # TODO: tolerate "/"
self._port = port # TODO: support different IP address too
self._fepPort = fepPort
self._tInstNum = tInstNum
self._smThread = ServiceManagerThread()
def getDbTarget(self):
return DbTarget(self.getCfgDir(), self.getHostAddr(), self._port)
def getPort(self):
return self._port
def __repr__(self):
return "[TdeInstance: {}, subdir={}]".format(
self._buildDir, Helper.getFriendlyPath(self._subdir))
def generateCfgFile(self):
# print("Logger = {}".format(logger))
# buildPath = self.getBuildPath()
# taosdPath = self._buildPath + "/build/bin/taosd"
cfgDir = self.getCfgDir()
cfgFile = cfgDir + "/taos.cfg" # TODO: inquire if this is fixed
if os.path.exists(cfgFile):
if os.path.isfile(cfgFile):
Logging.warning("Config file exists already, skip creation: {}".format(cfgFile))
return # cfg file already exists, nothing to do
else:
raise CrashGenError("Invalid config file: {}".format(cfgFile))
# Now that the cfg file doesn't exist
if os.path.exists(cfgDir):
if not os.path.isdir(cfgDir):
raise CrashGenError("Invalid config dir: {}".format(cfgDir))
# else: good path
else:
os.makedirs(cfgDir, exist_ok=True) # like "mkdir -p"
# Now we have a good cfg dir
cfgValues = {
'runDir': self.getRunDir(),
'ip': '127.0.0.1', # TODO: change to a network addressable ip
'port': self._port,
'fepPort': self._fepPort,
}
cfgTemplate = """
dataDir {runDir}/data
logDir {runDir}/log
charset UTF-8
firstEp {ip}:{fepPort}
fqdn {ip}
serverPort {port}
# was all 135 below
dDebugFlag 135
cDebugFlag 135
rpcDebugFlag 135
qDebugFlag 135
# httpDebugFlag 143
# asyncLog 0
# tables 10
maxtablesPerVnode 10
rpcMaxTime 101
# cache 2
keep 36500
# walLevel 2
walLevel 1
#
# maxConnections 100
"""
cfgContent = cfgTemplate.format_map(cfgValues)
f = open(cfgFile, "w")
f.write(cfgContent)
f.close()
def rotateLogs(self):
logPath = self.getLogDir()
# ref: https://stackoverflow.com/questions/1995373/deleting-all-files-in-a-directory-with-python/1995397
if os.path.exists(logPath):
logPathSaved = logPath + "_" + time.strftime('%Y-%m-%d-%H-%M-%S')
Logging.info("Saving old log files to: {}".format(logPathSaved))
os.rename(logPath, logPathSaved)
# os.mkdir(logPath) # recreate, no need actually, TDengine will auto-create with proper perms
def getExecFile(self): # .../taosd
return self._buildDir + "/build/bin/taosd"
def getRunDir(self): # TODO: rename to "root dir" ?!
return self._buildDir + self._subdir
def getCfgDir(self): # path, not file
return self.getRunDir() + "/cfg"
def getLogDir(self):
return self.getRunDir() + "/log"
def getHostAddr(self):
return "127.0.0.1"
def getServiceCmdLine(self): # to start the instance
return [self.getExecFile(), '-c', self.getCfgDir()] # used in subproce.Popen()
def _getDnodes(self, dbc):
dbc.query("show dnodes")
cols = dbc.getQueryResult() # id,end_point,vnodes,cores,status,role,create_time,offline reason
return {c[1]:c[4] for c in cols} # {'xxx:6030':'ready', 'xxx:6130':'ready'}
def createDnode(self, dbt: DbTarget):
"""
With a connection to the "first" EP, let's create a dnode for someone else who
wants to join.
"""
dbc = DbConn.createNative(self.getDbTarget())
dbc.open()
if dbt.getEp() in self._getDnodes(dbc):
Logging.info("Skipping DNode creation for: {}".format(dbt))
dbc.close()
return
sql = "CREATE DNODE \"{}\"".format(dbt.getEp())
dbc.execute(sql)
dbc.close()
def getStatus(self):
return self._smThread.getStatus()
def getSmThread(self):
return self._smThread
def start(self):
if not self.getStatus().isStopped():
raise CrashGenError("Cannot start instance from status: {}".format(self.getStatus()))
Logging.info("Starting TDengine instance: {}".format(self))
self.generateCfgFile() # service side generates config file, client does not
self.rotateLogs()
self._smThread.start(self.getServiceCmdLine())
def stop(self):
self._smThread.stop()
def isFirst(self):
return self._tInstNum == 0
class TdeSubProcess:
"""
A class to to represent the actual sub process that is the run-time
of a TDengine instance.
It takes a TdeInstance object as its parameter, with the rationale being
"a sub process runs an instance".
"""
# RET_ALREADY_STOPPED = -1
# RET_TIME_OUT = -3
# RET_SUCCESS = -4
def __init__(self):
self.subProcess = None
# if tInst is None:
# raise CrashGenError("Empty instance not allowed in TdeSubProcess")
# self._tInst = tInst # Default create at ServiceManagerThread
def getStdOut(self):
return self.subProcess.stdout
def getStdErr(self):
return self.subProcess.stderr
def isRunning(self):
return self.subProcess is not None
def getPid(self):
return self.subProcess.pid
def start(self, cmdLine):
ON_POSIX = 'posix' in sys.builtin_module_names
# Sanity check
if self.subProcess: # already there
raise RuntimeError("Corrupt process state")
self.subProcess = subprocess.Popen(
cmdLine,
shell=False,
# svcCmdSingle, shell=True, # capture core dump?
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
# bufsize=1, # not supported in binary mode
close_fds=ON_POSIX
) # had text=True, which interferred with reading EOF
def stop(self):
"""
Stop a sub process, and try to return a meaningful return code.
Common POSIX signal values (from man -7 signal):
SIGHUP 1
SIGINT 2
SIGQUIT 3
SIGILL 4
SIGTRAP 5
SIGABRT 6
SIGIOT 6
SIGBUS 7
SIGEMT -
SIGFPE 8
SIGKILL 9
SIGUSR1 10
SIGSEGV 11
SIGUSR2 12
"""
if not self.subProcess:
print("Sub process already stopped")
return # -1
retCode = self.subProcess.poll() # ret -N means killed with signal N, otherwise it's from exit(N)
if retCode: # valid return code, process ended
retCode = -retCode # only if valid
Logging.warning("TSP.stop(): process ended itself")
self.subProcess = None
return retCode
# process still alive, let's interrupt it
print("Terminate running process, send SIG_INT and wait...")
# sub process should end, then IPC queue should end, causing IO thread to end
self.subProcess.send_signal(signal.SIGINT)
self.subProcess.wait(20)
retCode = self.subProcess.returncode # should always be there
# May throw subprocess.TimeoutExpired exception above, therefore
# The process is guranteed to have ended by now
self.subProcess = None
if retCode != 0: # != (- signal.SIGINT):
Logging.error("TSP.stop(): Failed to stop sub proc properly w/ SIG_INT, retCode={}".format(retCode))
else:
Logging.info("TSP.stop(): sub proc successfully terminated with SIG_INT")
return - retCode
class ServiceManager:
PAUSE_BETWEEN_IPC_CHECK = 1.2 # seconds between checks on STDOUT of sub process
def __init__(self, numDnodes): # >1 when we run a cluster
Logging.info("TDengine Service Manager (TSM) created")
self._numDnodes = numDnodes # >1 means we have a cluster
self._lock = threading.Lock()
# signal.signal(signal.SIGTERM, self.sigIntHandler) # Moved to MainExec
# signal.signal(signal.SIGINT, self.sigIntHandler)
# signal.signal(signal.SIGUSR1, self.sigUsrHandler) # different handler!
self.inSigHandler = False
# self._status = MainExec.STATUS_RUNNING # set inside
# _startTaosService()
self._runCluster = (numDnodes > 1)
self._tInsts : List[TdeInstance] = []
for i in range(0, numDnodes):
ti = self._createTdeInstance(i) # construct tInst
self._tInsts.append(ti)
# self.svcMgrThreads : List[ServiceManagerThread] = []
# for i in range(0, numDnodes):
# thread = self._createThread(i) # construct tInst
# self.svcMgrThreads.append(thread)
def _createTdeInstance(self, dnIndex):
if not self._runCluster: # single instance
subdir = 'test'
else: # Create all threads in a cluster
subdir = 'cluster_dnode_{}'.format(dnIndex)
fepPort= 6030 # firstEP Port
port = fepPort + dnIndex * 100
return TdeInstance(subdir, dnIndex, port, fepPort)
# return ServiceManagerThread(dnIndex, ti)
def _doMenu(self):
choice = ""
while True:
print("\nInterrupting Service Program, Choose an Action: ")
print("1: Resume")
print("2: Terminate")
print("3: Restart")
# Remember to update the if range below
# print("Enter Choice: ", end="", flush=True)
while choice == "":
choice = input("Enter Choice: ")
if choice != "":
break # done with reading repeated input
if choice in ["1", "2", "3"]:
break # we are done with whole method
print("Invalid choice, please try again.")
choice = "" # reset
return choice
def sigUsrHandler(self, signalNumber, frame):
print("Interrupting main thread execution upon SIGUSR1")
if self.inSigHandler: # already
print("Ignoring repeated SIG...")
return # do nothing if it's already not running
self.inSigHandler = True
choice = self._doMenu()
if choice == "1":
self.sigHandlerResume() # TODO: can the sub-process be blocked due to us not reading from queue?
elif choice == "2":
self.stopTaosServices()
elif choice == "3": # Restart
self.restart()
else:
raise RuntimeError("Invalid menu choice: {}".format(choice))
self.inSigHandler = False
def sigIntHandler(self, signalNumber, frame):
print("ServiceManager: INT Signal Handler starting...")
if self.inSigHandler:
print("Ignoring repeated SIG_INT...")
return
self.inSigHandler = True
self.stopTaosServices()
print("ServiceManager: INT Signal Handler returning...")
self.inSigHandler = False
def sigHandlerResume(self):
print("Resuming TDengine service manager (main thread)...\n\n")
# def _updateThreadStatus(self):
# if self.svcMgrThread: # valid svc mgr thread
# if self.svcMgrThread.isStopped(): # done?
# self.svcMgrThread.procIpcBatch() # one last time. TODO: appropriate?
# self.svcMgrThread = None # no more
def isActive(self):
"""
Determine if the service/cluster is active at all, i.e. at least
one thread is not "stopped".
"""
for ti in self._tInsts:
if not ti.getStatus().isStopped():
return True
return False
# def isRestarting(self):
# """
# Determine if the service/cluster is being "restarted", i.e., at least
# one thread is in "restarting" status
# """
# for thread in self.svcMgrThreads:
# if thread.isRestarting():
# return True
# return False
def isStable(self):
"""
Determine if the service/cluster is "stable", i.e. all of the
threads are in "stable" status.
"""
for ti in self._tInsts:
if not ti.getStatus().isStable():
return False
return True
def _procIpcAll(self):
while self.isActive():
Progress.emit(Progress.SERVICE_HEART_BEAT)
for ti in self._tInsts: # all thread objects should always be valid
# while self.isRunning() or self.isRestarting() : # for as long as the svc mgr thread is still here
status = ti.getStatus()
if status.isRunning():
th = ti.getSmThread()
th.procIpcBatch() # regular processing,
if status.isStopped():
th.procIpcBatch() # one last time?
# self._updateThreadStatus()
time.sleep(self.PAUSE_BETWEEN_IPC_CHECK) # pause, before next round
# raise CrashGenError("dummy")
print("Service Manager Thread (with subprocess) ended, main thread exiting...")
def _getFirstInstance(self):
return self._tInsts[0]
def startTaosServices(self):
with self._lock:
if self.isActive():
raise RuntimeError("Cannot start TAOS service(s) when one/some may already be running")
# Find if there's already a taosd service, and then kill it
for proc in psutil.process_iter():
if proc.name() == 'taosd':
print("Killing an existing TAOSD process in 2 seconds... press CTRL-C to interrupt")
time.sleep(2.0)
proc.kill()
# print("Process: {}".format(proc.name()))
# self.svcMgrThread = ServiceManagerThread() # create the object
for ti in self._tInsts:
ti.start()
if not ti.isFirst():
tFirst = self._getFirstInstance()
tFirst.createDnode(ti.getDbTarget())
ti.getSmThread().procIpcBatch(trimToTarget=10, forceOutput=True) # for printing 10 lines
def stopTaosServices(self):
with self._lock:
if not self.isActive():
Logging.warning("Cannot stop TAOS service(s), already not active")
return
for ti in self._tInsts:
ti.stop()
def run(self):
self.startTaosServices()
self._procIpcAll() # pump/process all the messages, may encounter SIG + restart
if self.isActive(): # if sig handler hasn't destroyed it by now
self.stopTaosServices() # should have started already
def restart(self):
if not self.isStable():
Logging.warning("Cannot restart service/cluster, when not stable")
return
# self._isRestarting = True
if self.isActive():
self.stopTaosServices()
else:
Logging.warning("Service not active when restart requested")
self.startTaosServices()
# self._isRestarting = False
# def isRunning(self):
# return self.svcMgrThread != None
# def isRestarting(self):
# return self._isRestarting
class ServiceManagerThread:
"""
A class representing a dedicated thread which manages the "sub process"
of the TDengine service, interacting with its STDOUT/ERR.
It takes a TdeInstance parameter at creation time, or create a default
"""
MAX_QUEUE_SIZE = 10000
def __init__(self):
# Set the sub process
self._tdeSubProcess = None # type: TdeSubProcess
# Arrange the TDengine instance
# self._tInstNum = tInstNum # instance serial number in cluster, ZERO based
# self._tInst = tInst or TdeInstance() # Need an instance
self._thread = None # The actual thread, # type: threading.Thread
self._status = Status(Status.STATUS_STOPPED) # The status of the underlying service, actually.
def __repr__(self):
return "[SvcMgrThread: status={}, subProc={}]".format(
self.getStatus(), self._tdeSubProcess)
def getStatus(self):
return self._status
# Start the thread (with sub process), and wait for the sub service
# to become fully operational
def start(self, cmdLine):
if self._thread:
raise RuntimeError("Unexpected _thread")
if self._tdeSubProcess:
raise RuntimeError("TDengine sub process already created/running")
Logging.info("Attempting to start TAOS service: {}".format(self))
self._status.set(Status.STATUS_STARTING)
self._tdeSubProcess = TdeSubProcess()
self._tdeSubProcess.start(cmdLine)
self._ipcQueue = Queue()
self._thread = threading.Thread( # First thread captures server OUTPUT
target=self.svcOutputReader,
args=(self._tdeSubProcess.getStdOut(), self._ipcQueue))
self._thread.daemon = True # thread dies with the program
self._thread.start()
self._thread2 = threading.Thread( # 2nd thread captures server ERRORs
target=self.svcErrorReader,
args=(self._tdeSubProcess.getStdErr(), self._ipcQueue))
self._thread2.daemon = True # thread dies with the program
self._thread2.start()
# wait for service to start
for i in range(0, 100):
time.sleep(1.0)
# self.procIpcBatch() # don't pump message during start up
print("_zz_", end="", flush=True)
if self._status.isRunning():
Logging.info("[] TDengine service READY to process requests")
Logging.info("[] TAOS service started: {}".format(self))
# self._verifyDnode(self._tInst) # query and ensure dnode is ready
# Logging.debug("[] TAOS Dnode verified: {}".format(self))
return # now we've started
# TODO: handle failure-to-start better?
self.procIpcBatch(100, True) # display output before cronking out, trim to last 20 msgs, force output
raise RuntimeError("TDengine service did not start successfully: {}".format(self))
def _verifyDnode(self, tInst: TdeInstance):
dbc = DbConn.createNative(tInst.getDbTarget())
dbc.open()
dbc.query("show dnodes")
# dbc.query("DESCRIBE {}.{}".format(dbName, self._stName))
cols = dbc.getQueryResult() # id,end_point,vnodes,cores,status,role,create_time,offline reason
# ret = {row[0]:row[1] for row in stCols if row[3]=='TAG'} # name:type
isValid = False
for col in cols:
# print("col = {}".format(col))
ep = col[1].split(':') # 10.1.30.2:6030
print("Found ep={}".format(ep))
if tInst.getPort() == int(ep[1]): # That's us
# print("Valid Dnode matched!")
isValid = True # now we are valid
break
if not isValid:
print("Failed to start dnode, sleep for a while")
time.sleep(600)
raise RuntimeError("Failed to start Dnode, expected port not found: {}".
format(tInst.getPort()))
dbc.close()
def stop(self):
# can be called from both main thread or signal handler
print("Terminating TDengine service running as the sub process...")
if self.getStatus().isStopped():
print("Service already stopped")
return
if self.getStatus().isStopping():
print("Service is already being stopped")
return
# Linux will send Control-C generated SIGINT to the TDengine process
# already, ref:
# https://unix.stackexchange.com/questions/176235/fork-and-how-signals-are-delivered-to-processes
if not self._tdeSubProcess:
raise RuntimeError("sub process object missing")
self._status.set(Status.STATUS_STOPPING)
# retCode = self._tdeSubProcess.stop()
try:
retCode = self._tdeSubProcess.stop()
# print("Attempted to stop sub process, got return code: {}".format(retCode))
if retCode == signal.SIGSEGV : # SGV
Logging.error("[[--ERROR--]]: TDengine service SEGV fault (check core file!)")
except subprocess.TimeoutExpired as err:
print("Time out waiting for TDengine service process to exit")
else:
if self._tdeSubProcess.isRunning(): # still running, should now never happen
print("FAILED to stop sub process, it is still running... pid = {}".format(
self._tdeSubProcess.getPid()))
else:
self._tdeSubProcess = None # not running any more
self.join() # stop the thread, change the status, etc.
# Check if it's really stopped
outputLines = 10 # for last output
if self.getStatus().isStopped():
self.procIpcBatch(outputLines) # one last time
Logging.debug("End of TDengine Service Output: {}".format(self))
Logging.info("----- TDengine Service (managed by SMT) is now terminated -----\n")
else:
print("WARNING: SMT did not terminate as expected: {}".format(self))
def join(self):
# TODO: sanity check
if not self.getStatus().isStopping():
raise RuntimeError(
"SMT.Join(): Unexpected status: {}".format(self._status))
if self._thread:
self._thread.join()
self._thread = None
self._status.set(Status.STATUS_STOPPED)
# STD ERR thread
self._thread2.join()
self._thread2 = None
else:
print("Joining empty thread, doing nothing")
def _trimQueue(self, targetSize):
if targetSize <= 0:
return # do nothing
q = self._ipcQueue
if (q.qsize() <= targetSize): # no need to trim
return
Logging.debug("Triming IPC queue to target size: {}".format(targetSize))
itemsToTrim = q.qsize() - targetSize
for i in range(0, itemsToTrim):
try:
q.get_nowait()
except Empty:
break # break out of for loop, no more trimming
TD_READY_MSG = "TDengine is initialized successfully"
def procIpcBatch(self, trimToTarget=0, forceOutput=False):
self._trimQueue(trimToTarget) # trim if necessary
# Process all the output generated by the underlying sub process,
# managed by IO thread
print("<", end="", flush=True)
while True:
try:
line = self._ipcQueue.get_nowait() # getting output at fast speed
self._printProgress("_o")
except Empty:
# time.sleep(2.3) # wait only if there's no output
# no more output
print(".>", end="", flush=True)
return # we are done with THIS BATCH
else: # got line, printing out
if forceOutput:
Logging.info(line)
else:
Logging.debug(line)
print(">", end="", flush=True)
_ProgressBars = ["--", "//", "||", "\\\\"]
def _printProgress(self, msg): # TODO: assuming 2 chars
print(msg, end="", flush=True)
pBar = self._ProgressBars[Dice.throw(4)]
print(pBar, end="", flush=True)
print('\b\b\b\b', end="", flush=True)
def svcOutputReader(self, out: IO, queue):
# Important Reference: https://stackoverflow.com/questions/375427/non-blocking-read-on-a-subprocess-pipe-in-python
# print("This is the svcOutput Reader...")
# for line in out :
for line in iter(out.readline, b''):
# print("Finished reading a line: {}".format(line))
# print("Adding item to queue...")
try:
line = line.decode("utf-8").rstrip()
except UnicodeError:
print("\nNon-UTF8 server output: {}\n".format(line))
# This might block, and then causing "out" buffer to block
queue.put(line)
self._printProgress("_i")
if self._status.isStarting(): # we are starting, let's see if we have started
if line.find(self.TD_READY_MSG) != -1: # found
Logging.info("Waiting for the service to become FULLY READY")
time.sleep(1.0) # wait for the server to truly start. TODO: remove this
Logging.info("Service is now FULLY READY") # TODO: more ID info here?
self._status.set(Status.STATUS_RUNNING)
# Trim the queue if necessary: TODO: try this 1 out of 10 times
self._trimQueue(self.MAX_QUEUE_SIZE * 9 // 10) # trim to 90% size
if self._status.isStopping(): # TODO: use thread status instead
# WAITING for stopping sub process to finish its outptu
print("_w", end="", flush=True)
# queue.put(line)
# meaning sub process must have died
Logging.info("\nEnd of stream detected for TDengine STDOUT: {}".format(self))
out.close()
def svcErrorReader(self, err: IO, queue):
for line in iter(err.readline, b''):
print("\nTDengine Service (taosd) ERROR (from stderr): {}".format(line))
Logging.info("\nEnd of stream detected for TDengine STDERR: {}".format(self))
err.close()
\ No newline at end of file
tests/pytest/crash_gen_bootstrap.py 0 → 100644
浏览文件 @ 39d9e6b4
# -----!/usr/bin/python3.7
###################################################################
# Copyright (c) 2016 by TAOS Technologies, Inc.
# All rights reserved.
#
# This file is proprietary and confidential to TAOS Technologies.
# No part of this file may be reproduced, stored, transmitted,
# disclosed or used in any form or by any means other than as
# expressly provided by the written permission from Jianhui Tao
#
###################################################################
import sys
from crash_gen.crash_gen import MainExec
if __name__ == "__main__":
mExec = MainExec()
mExec.init()
exitCode = mExec.run()
print("Exiting with code: {}".format(exitCode))
sys.exit(exitCode)
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